Compared to its Windows counterpart, the Linux version of Adobe’s Flash player has always been somewhat crippled. A lot has changed in the past few months though, especially since Flash 9 was released for the OS. One specific feature that was still lacking was full-screen mode for video, due to complications that a non-developer such as myself fails to understand. However, Adobe has released an updated beta to take care of that problem, and in my quick tests, it works very well.
Though welcomed, the Flash player for Linux still has a little ways to go. The main beef I personally have is that many flash ads do not function properly at all. Depending on how the ad was designed, it could actually cover the actual content on the page. I have it happen at least once every other day, and I’m sure I am not alone.
The most notable features of interest to Linux users: Fullscreen mode works on Linux, and the entire thing has been reworked as a native GTK app that communicates with the hosting web browser using the XEmbed protocol. Hopefully, your favorite Linux web browser also holds up its end of the bargain by hosting XEmbed applications.
Source: IGN Xbox 360