Bytemobile and Opera Software Form Partnership for Browser Optimization

Mountain View, Calif. and Oslo, Norway, January 17, 2006

Bytemobile, Inc., the global leader in content-dynamic networking solutions that unify, simplify and accelerate mobile data networks, and Opera Software ASA (OBX: OPERA), the world leader in Web browser technologies, today announced a joint development, marketing and sales agreement for handset browser optimization. The two companies also announced the availability of a high-performance Opera Mobile browser powered by Bytemobile's Optimization Services Node (OSN) Monaco™ Edition.

Bytemobile and Opera have integrated these products to accelerate current browser speeds by up to three times on 3G networks, while optimizing network efficiency by reducing per-transaction data volumes. The resulting solution, a full- HTML handset browser enhanced by Monaco, is designed for rapid integration and deployment by mobile handset manufacturers and network operators.

"By combining our products, we can offer a faster Web browsing experience for the end user, free up network capacity to support more users and applications, and lower the operators' cost of information delivery," said Timo Bruns, executive vice president, Mobile, at Opera. "We believe that this joint solution will further accelerate the ongoing rapid adoption of full Web browsers."

"This partnership underscores the commitment of Bytemobile and Opera to help operators increase their competitive advantage and maximize their return on investment," said Yoshioki Chika, chief technology officer of Willcom, Inc., a leading mobile data network operator in Japan.

Bytemobile's OSN has been implemented by more than 60 operators worldwide, serving a total of nearly one billion subscribers. The new Bytemobile-enhanced Opera Mobile browser is compatible with all of these operators' platforms and is designed to deliver high performance on the fastest networks. The solution is also compatible with all handset platforms supported by Opera Mobile, which currently serves approximately 25 million mobile subscribers worldwide.

"Our strategic partnership with Opera leverages the convergence of more efficient networks, more advanced feature phones and more sophisticated browsers to deliver increasingly richer content," said Adrian Hall, vice president, Business Development, at Bytemobile. "Moreover, it fully supports our strategy of enabling operators to generate new and more profitable revenue streams for handset-based services by continuously enhancing the user experience."

About Bytemobile, Inc.

Bytemobile network services and optimization solutions unify, simplify and accelerate the deployment of advanced wireless data services to mobile handsets, laptops and PDAs. Mobile network operators around the world have chosen Bytemobile products to maximize the profitability and efficiency of their networks. Bytemobile helps operators deliver fast, reliable remote access to the applications their subscribers need every day.

Bytemobile's market-leading solutions are deployed at more than 60 mobile network operators around the world. These companies support nearly one billion wireless subscribers in 30 countries across Asia, North America, Europe, South America, the Middle East, and Africa. Customers include Centertel, China Mobile, Cingular, Connex, Nextel, NTT DoCoMo, Orange, Proximus, Sprint Nextel, T-Mobile, Telefónica Móviles, O2, Vodafone, and Willcom.

Bytemobile is a privately held company headquartered in Mountain View, California. The company has sales and support offices in Uckfield, England; Tokyo, Japan; and Beijing, China; and technology development centers in Patras, Greece, and Marlborough, Massachusetts.

To learn more about Bytemobile, visit www.bytemobile.com.

About Opera Software ASA

The worldwide World Wide Web — any device, any platform, any bandwidth, absolutely anywhere in the world. Opera Software was founded in 1994, based on the idea that access to the web should be a universal right. 250 million people (and counting) use the Opera web browsers for computers, mobile phones, TVs and other connected devices. Opera also delivers tools, distribution, engagement, monetization and market insights to developers, publishers and brands around the world. We are passionate about breaking down barriers, so everyone can share in the power of the internet. Our vision of one web for all remains at the heart of what we do, because we believe that participation changes everything. Opera Software ASA is listed on the Oslo Stock Exchange under the ticker symbol OPERA. Learn more about Opera at www.opera.com.