I remmember reading a topic about this subject during beta...
For those worried, read the following:
The renowned Unreal Engine is now running on Flash: http://www.epicgames.com/news/unreal-engine-3-supports-adobe-flash/
News about flash player 11 and air 3: http://blogs.adobe.com/flashplatform/2011/09/announcing-flash-player-11-and-air-3.html
Long Live Flash!
Source: ovelho.com