On2 Technologies Joins Symbian Platinum Partner Program

Partner Program Elevates Accessibility, Visibility of On2 VP7 Video

Innovations for World's Most Extensive Mobile OS Platform

NEW YORK, Feb. 9 /PRNewswire-FirstCall/ -- On2 Technologies, Inc.
(Amex: ONT) today announced it has joined the Symbian Platinum Partner
Program to elevate the visibility of, and accessibility to, On2
Technologies' industry-leading VP7 video compression technology for
development within the Symbian OS(TM) platform. Symbian develops and
licenses Symbian OS, the operating system that powers today's most
popular smart phones, with almost 48 million phones based on Symbian
OS having shipped worldwide.

Symbian OS phones are growing in popularity. As of Q3 2005, Symbian OS
phone shipments grew more than 131% compared to the same quarter last
year. According to technology analyst firm Canalys, overall global
shipments of smartphones are up 183% year on year in Q3 2005 with
Symbian emerging as the market leader.

As part of the Platinum Partner Program, partner's benefit from a
range of commercial services, including technical support and joint
marketing opportunities, as well as privileged access to Symbian OS
source code. These benefits are key to the rapid development and
adoption of high quality VP7-enabled video streaming solutions and the
delivery to smart phones via the ubiquitous Symbian OS.

"As the worldwide leader in the mobile OS market, Symbian is well
positioned to fuel rapid adoption of high quality mobile video created
by the On2 VP7 codec," said Daniel Scherer, Senior Vice President --
Device and Service Provider Markets, at On2 Technologies. "As we've
contended, mobile video is a quickly emerging hot spot in consumer
technology, and we're proud to be partnering with Symbian to make this
trend a reality for smart phone users worldwide."

"On2 Technologies' video compression products present hand set
manufacturers, carriers and service providers, a unique platform for
video-based value added services, like Mobile TV and two-way video
messaging," said Simon Garth, Vice president of marketing, Symbian
LTD. "The addition of On2 Technologies to the Symbian Platinum Partner
Program underscores our joint commitment to bringing high quality
mobile video to the ever expanding and increasingly sophisticated
Symbian OS ecosystem."

About On2 Technologies, Inc., The Duck Corporation

On2 Technologies (Amex: ONT) is a leading technology firm at the
forefront of video compression. The company revolutionized digital
media delivery with the creation of its advanced full-motion,
full-screen, On2 Video compression and streaming technologies. On2
Video codecs are used extensively in the video-on-demand,
videoconferencing, Internet media, surveillance, and store- and-play
markets. They operate with On2's own TrueCast Server and Player
software, as well as third-party player and server products. On2's
software is used by such leading companies as Sony, XM Satellite
Radio, NTT, AOL, Skype, Nullsoft, and Macromedia. The On2 Video
decoder has an installation base of millions through its inclusion in
AOL 9 Media Player, Winamp 5, Viewpoint Media Player, and others. On2
licenses its software for use in set-top boxes, consumer electronics
devices and wireless applications and offers high-level video
encoding, customized technical support, and consulting/integration
services. Located in New York City, the company has an office in
Clifton Park, NY, and operations in Cambridge, UK. To contact On2
write to sales@on2.com or visit http://www.on2.com.

About Symbian Ltd.

Symbian is a software licensing company that develops and licenses
Symbian OS(TM), the global open industry standard operating system for
advanced, data-enabled mobile phones.

Symbian licenses Symbian OS to the world's leading handset
manufacturers and has built close co-operative business relationships
with leading companies across the mobile industry. In the first three
quarters of 2005, more than 23 million Symbian OS-based mobile phones
were sold worldwide to over 200 network operators, taking the
installed base of Symbian OS phones to almost 48 million.

Symbian has its headquarters in London, United Kingdom with offices in
the United States, Europe (Cambridge, UK and Ronneby, Sweden (UIQ
Technology AB), Israel and Asia (Bangalore, Beijing, Seoul and Tokyo).
SOURCE On2 Technologies, Inc.