KEYNOTE SYSTEMS AND ZENPRISE TEAM TO IMPROVE CUSTOMER SUPPORT SERVICES FOR THE BLACKBERRY NETWORK

Keynote Deploys Zenprise for BlackBerry to Monitor Carrier Availability and Performance Across Sprint, Verizon, T-Mobile and AT&T

Fremont, CA – October 22, 2007 – Zenprise, Inc. today announced they were selected by Keynote Systems, the global leader in on-demand mobile and Internet test and measurement solutions for continuously improving the online experience, for a partnership to improve customer support services for its BlackBerry users.

The joint offering aims to proactively detect carrier, device, or infrastructure problems that can adversely impact an end user’s experience. Keynote will initially deploy its mobile quality monitoring agents in New York to examine the carrier availability and performance of BlackBerry devices running across the Sprint, Verizon, T-Mobile and AT&T carrier networks. Zenprise customers will receive automated notifications when carrier outages or performance degradation are impacting BlackBerry users. With Keynote’s network monitoring services, Zenprise will have the ability to deliver true real-time, automated diagnoses and resolutions to carrier issues impacting the BlackBerry environment.

“Zenprise’s BlackBerry customers will greatly benefit from this service,” said Umang Gupta, Chairman and CEO of Keynote. “Now, Zenprise customers will be continuously aware of an end user’s experience with their carrier network. Keynote’s emphasis on real-time network visibility is a crucial component in this partnership and highlights our ongoing investment in the mobile experience. Partnering with Zenprise, the leader in BlackBerry troubleshooting software, allows our customers to receive proactive notification of any carrier, server infrastructure, or device issues that impact BlackBerry users.”

Zenprise both monitors and troubleshoots the BlackBerry environment, significantly reducing the volume of alerts people receive when a problem occurs. The software captures a holistic view of the entire environment affecting the BlackBerry system. In addition to monitoring BES, Zenprise also checks carrier availability, Active Directory health, RIM SRP availability, WAN/LAN network performance, and overall Exchange health.

“Deploying BlackBerry devices in specific markets will allow our customers to get an accurate perspective of an end user’s availability and performance,” said Jayaram Bhat, CEO of Zenprise. “Zenprise’s BlackBerry troubleshooting software can then correlate carrier issues in real time with user specific issues.”

To learn more about Zenprise for BlackBerry, go to www.zenprise.com/blackberry.

About Zenprise
Zenprise provides service-management software that delivers real-time, automated diagnosis and resolution of problems across the Microsoft Exchange and BlackBerry environments. Founded in 2003, Zenprise is headquartered in Fremont, California and is privately held with funding from investors Bay Partners, Mayfield, and Shasta Ventures. Zenprise's executive and product teams bring enterprise software experience from companies such as Mercury, EDS, Zambeel, Bay Networks, and Loudcloud. For more information, go to www.zenprise.com.

About Keynote
Keynote (Nasdaq “KEYN”), known as The Mobile and Internet Performance Authority™, is the global leader in on-demand test & measurement solutions for continuously improving the online experience. As an independent and trusted third-party, Keynote provides IT and marketing executives with an unbiased view into their mobile and Internet services from around the world.

We help over 2,600 corporate customers become “the best of the best” by helping them improve online business performance and mobile communications quality. Our customers represent top Internet and mobile companies including American Express, BP, Caterpillar, Dell, Disney, eBay, ESPN Mobile, E*TRADE, Expedia, FedEx, Microsoft, SonyEricsson, Sprint, T-Mobile, Verizon and Vodafone.

Keynote Systems, Inc. is headquartered in San Mateo, California and can be reached at www.keynote.com or by phone in the U.S. at (650) 403-2400.