Adobe has released a new Flash 10.2 beta for Windows, Mac and Linux which introduces a number of enhancements and new APIs. Flash 10.2 beta also support Internet Explorer 9 hardware acceleration.
Flash 10.2 beta includes a new feature called Stage Video, which helps websites deliver smooth videos across devices and browsers by enabling access to hardware acceleration. Flash 10.2 also claims to deliver HD videos while using very little processing power.
Overall, Flash 10.2 Beta looks like a worthwhile upgrade if you do not have any issues with using beta software. You can learn about all the new enhancements in Flash 10.2 at the official blog or download it from here.