vyyo. Vyyo assumes no
duty to update these statements.

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"
With DecisionSite for Functional Genomics, users have all the
tools needed for collaboration and effective, interactive presentation
of large amounts of complex gene function information.
Johnson, a former director of technology at Cablevision Systems
Corporation and most recently senior vice president at Ipitek, Inc."
Prior to Ipitek, Johnson was chief operating officer of PowerWAN, Inc.

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's portfolio of broadband
end-to-end solutions used by cable and wireless operators worldwide.

It does this by trying to understand or model the nature of human intelligence.

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Additional information can
be found at: http://www.

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Its interactive, visual analysis environment incorporates high-impact
visualization capabilities that let users examine the expression and
annotation dimensions of their data and perform a wide array of
numerical analyses . DecisionSite
Guides are used to capture specific analysis workflows as step-by-step
procedures for a variety of tasks within genomics research, so that
even novice users can easily explore data using advanced analytic
tools and dynamic, interactive visualizations.
Xtend Networks' solutions are currently being trialed by cable operators
in multiple markets.

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These institutions
were showcased during Spotfire's European User Conference held in
Koln, Germany, where researchers presented case studies. Risks that may
cause these forward-looking statements to be inaccurate include among others:
the current limited visibility available in the telecommunications and
broadband access equipment markets; whether Xtend will be able to move from
the development stage to deployment and establish commercial relationships
with the cable system operators; whether the cable industry will be willing
and able to substantially increase the available bandwidth on their networks
and do so using Xtend 's alternative technology solution; and other risks set
forth in Vyyo's annual report on Form 10-K for the year ended December 31,
2004, Vyyo's quarterly reports on Form 10-Q and other reports filed by Vyyo
with the Securities and Exchange Commission from time to time.

AI in computer games, knowledge based systems and such are typical examples of this branch.

humphreys ultimatly

(http://www. "What sets Xtend's technology apart is its ability to
dramatically increase last-mile HFC bandwidth without replacing the existing
plant. Xtend Networks is part of Vyyo Inc.

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Business Editors/Technology Editors

SOMERVILLE , Mass.
"The research breakthroughs these institutions have been able to
achieve are remarkable .S., a
Palo Alto, CA Broadband over Power Lines (BPL) solutions vendor.com.

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They are incredibly well -respected in genomic
research," said Christopher Ahlberg, CEO, Spotfire.

Both branches are multidisciplinary, in that they have close relations with the fields of computer science, philosophy , medicine, psychology, biology and linguistics.

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Johnson was responsible for engineering and
implementing the cable industry's first high-speed data and voice network.xtendnetworks.

Safe Harbor Statement
Statements made in this press release relating to the future, including
those related to the potential for Xtend's systems to generate (1) new
customers, markets and revenues; and (2) competitive advantages over incumbent
telecoms for MSOs, are forward-looking statements within the meaning of the
"safe harbor" provisions of the Private Securities Litigation Reform Act of
1995.

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"
"Throughout my career, I've worked with the cable industry to explore a
variety of innovative ways to deliver more advanced services to subscribers,"
said Johnson. Johnson
served Synchronous Group in two capacities before the San Jose, CA company's
sale to Motorola in 2002: one as vice president of sales and marketing from
1985-88 and another from 1993-2000 as president, when the company developed a
new fiber optic transmission system that remains the standard for optical
supertrunking.

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"The ability of our RF bandwidth expansion solutions to remove current
bandwidth limitations holds enormous potential for cable system operators,"
said Bill Keating, CEO of Xtend Networks.
With Cablevision Systems from 1988-92, Johnson was instrumental in the
company's exploration and adoption of next generation technologies, including
optical architectures, digital compression, Direct Broadcast Satellite and
Personal Communications Services.com) provides cost-efficient,
innovative solutions that have been proven to double the usable downstream
bandwidth and increase tenfold the upstream bandwidth of typical hybrid
fiber-coaxial (HFC) network architectures. Xtend's RF technology works with
existing infrastructure to significantly increase upstream and downstream
capacity , enabling cable system operators to economically deploy DOCSIS(R)-
based symmetrical commercial services , HDTV and other bandwidth intensive
services. These forward-looking statements involve risks and uncertainties, as
well as assumptions that, if they do not fully materialize or prove incorrect,
could cause our business and results of operations to differ materially from
those expressed or implied by such forward-looking statements.

annealing tangible

com), a market leader in
interactive, visual analytics for business decision-making, today
announced significant momentum with academic research institutions . headquarters in Somerville, Mass. Xtend's solution for the delivery of expanded,
DOCSIS(TM)-compatible , RF (radio frequency) bandwidth on the existing coaxial
plant has led to its becoming an approved vendor of Cox Communications.

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The Max Planck Institute of Biochemistry at Martinsried and the German
Cancer Research Center (DKFZ) at Heidelberg, both leading research
centers in Europe, are utilizing Spotfire DecisionSite(TM) to
dramatically enhance their research capabilities. "Spotfire provides us the
powerful analytic capability we need to advance our research combined
with the ability to easily extend the research and discovery process
across our entire staff, which is crucial for our success. Over 25,000 users in close to 1,000
organizations around the world use Spotfire DecisionSite to drive
confident decision-making by quickly and easily spotting trends,
outliers and unanticipated relationships in critical business data., please visit http://www.

The first, often called 'weak' AI , is the effort to design and implement computer systems that can perform tasks requiring intelligence when performed by humans.

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Academic Researchers Turn to Spotfire for Advanced Discovery Capabilities

, and
European headquarters in Goteborg, Sweden. ATLANTA, Xtend Networks(TM), a Vyyo(R)
company (Nasdaq: VYYO) that provides advanced broadband solutions for the
cable TV industry, today announced that veteran cable and telecommunications
technologist Al Johnson has been named Vice President, Technology and Advanced
Architectures. He is a member of the Society of Cable
Telecommunications Engineers (SCTE), the Optical Society of America and the
Institute of Electrical and Electronics Engineers (IEEE).

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----

Max Planck Institute of Biochemistry at Martinsried and German
Cancer Research Center at Heidelberg to Enrich German Research
Community with New Capabilities

Spotfire (R), Inc.

About Xtend Networks(TM) (A Vyyo(R) Company)
Xtend Networks(TM) (http://www .

enormous intelligence

Johnson served 10 years with the United States Air Force, twice earning
the Meritorious Service Medal for exceptional accomplishments within the Air
Force Communications Command.

NOTE: All trademarks mentioned herein are the property of their
respective owners.

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The company maintains U. "Al Johnson brings a
multidisciplinary background and a track record of innovation in broadband , in
fiber optics and in cable system engineering that will help Xtend Networks to
maximize the value of our technology for the industry. For more
information about Vyyo, Inc.

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spotfire.com

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Friedrich Lottspeich, the President of the German Society of
Proteomics Research and head of Protein Analytics at the Max Planck
Institute of Biochemistry at Martinsried.spotfire., will be
responsible for driving customer prioritized technology decisions for Xtend's
in-band bandwidth expansion solutions, which are proven to double the usable
downstream bandwidth and increase tenfold the upstream bandwidth of typical
hybrid fiber-coaxial (HFC) network architectures.

The second , less tangible branch, often called 'strong' AI, is the research that ultimatly aims to build artificial systems that display real intelligence.

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"We take a very collaborative approach to research," commented Dr. Researchers can
share analysis findings and distribute them through email, while also
creating a searchable repository of research paths previously taken.

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Spotfire DecisionSite for Functional Genomics is an application
that enables academic research groups to quickly and easily find and
categorize important and complex genes and gene expression patterns. To extend the power of
the application across the organization, these institutions will use
DecisionSite Posters as the global publishing platform to share
DecisionSite analysis results across research teams."

About Spotfire

Spotfire(R), Inc. provides interactive, visual data analytics
applications and services that empower enterprises and their end-users
to improve operational performance and gain an information advantage
over the competition.

Cable Veteran Al Johnson Joins Xtend Networks as VP Technology and Advanced Architectures

Artificial Intelligence is a field of science that has several goals.

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"We look forward
to the news of even more discoveries through the application of
Spotfire technology.