Adobe Flash Builder for Force.com is now available! The new offering integrates the Flash Platform with Force.com (from salesforce.com) to bring the richness of the consumer Web to enterprise cloud applications. This jointly developed IDE provides a single, powerful tool for building cloud-based RIAs, which can easily be deployed to end users through the browser using Adobe Flash Player or directly to the desktop via Adobe AIR. Developers can use Adobe Flash Builder for Force.com to extend or enhance existing salesforce CRM implementations and custom-built Force.com applications, or build entirely new applications to meet any demanding business need.
Go here for more information, and check out salesforce.com’s developer page to get started.