SAN MATEO, Calif. (September 6, 2005) - Laszlo Systems, developer of the leading open source platform for rich Internet applications (RIAs), today announced that Kent A. Libbey has joined the Company as Chief Marketing Officer. Libbey brings to Laszlo Systems over twenty years of marketing and operations management experience spanning voice, video, broadband and mobile applications and services.

Steve Ciesinski, Chairman and CEO of Laszlo Systems, said, "Kent has a proven track record of building successful products in new markets based on innovative technologies. This experience, along with his industry relationships in communications and entertainment, bring a new dimension to the management team and will be immensely valuable in defining and realizing the full potential of Laszlo Systems as we seek to deliver a consistent user experience across communications services and devices."

Libbey joined Laszlo from Microsoft Corporation, where he was Director, Product Marketing in the company's TV software division. He led Microsoft's marketing efforts in the definition and launch of its industry-leading IP Television platform, adopted by more than a dozen tier-one telecommunications companies worldwide. Previously, he was Vice President of Marketing at iVAST, an early-stage software company offering solutions based on the international MPEG-4 standard. His career also includes executive roles in product management and operations at Excite@Home, Bell Atlantic and MCI. Libbey holds an MBA from Stanford University and bachelor's degree from Harvard College.

Remarked Libbey, "Applications already being delivered by Laszlo's open source community and Laszlo itself represent the start of a whole new category of digital life experiences. The open, rich and portable nature of Laszlo's platform is ideal for 'triple-play' and 'home-run' scenarios that advance the user experience across voice, video, data and mobile services. I'm thrilled to join Laszlo Systems at this exciting juncture in the company's growth."

David Temkin, Founder and Chief Technology Officer of Laszlo Systems, worked closely with Libbey at Excite@Home. He adds, "I'm delighted to be working with Kent again. He brings to Laszlo a mature business vision informed by deep experience as both a service operator and a technology provider."

About Laszlo Systems Laszlo Systems is the original developer of OpenLaszlo, an open source platform for building applications delivered through the Web and private networks that are as rich and robust as traditional, client-installed applications. OpenLaszlo technology has been widely adopted by application and service providers in the consumer, enterprise, education and government markets. Laszlo Systems provides updates, training and support for OpenLaszlo and offers rich-experience web-based digital life applications such as LaszloMail, built on OpenLaszlo. For more information about Laszlo Systems, visit www.laszlosystems.com.

Note to editors: Laszlo is a registered trademark of Laszlo Systems, Inc. OpenLaszlo is a trademark of Laszlo Systems, Inc. All other products and brands mentioned are trademarks and/or service marks of their respective owners. Photos of Mr. Kent Libbey are available from The Devon Group.