This is from http://www.flashmobileblog.com/

The beta is now waiting on the Android Market for Nexus One and other Android 2.2 users to test out. General availability is expected in June 2010.



While today’s (2010-05-20) announcement is all about Android, our target mobile operating systems for Flash Player also include Windows Phone 7, webOS, Symbian, and BlackBerry. Adobe provides a porting kit and Linux-based reference implementation to Open Screen Project partners to allow them to port Flash Player 10.1 to other platforms. These ports are subject to Adobe certification and must pass our standards for compatibility, performance and usability in order for devices to be marketed as “Includes Adobe Flash Player.”

Is not like Symbian is in Nokia hands?

And another one possibility... maemo didn't pass...