Adobe Flash Player 10 for Linux may only be a beta, but it’s one heck of a beta.
I didn’t care for Adobe Flash video at first. It was just another proprietary audio/video format in a world already over-flowing with them.

Three things have happened to change my mind. First, Adobe made it possible to use the open H.264 video and HE-AAC (High Efficiency Advanced Audio Coding) audio standards in Flash SWF (Shockwave Flash) files. Then, they made the Adobe Flash player available on Linux, and, this May, Adobe announced that it was opening up the SWF and FLV/F4V (Flash Video) formats and dumping the format’s licensing fees. At about the same time, Adobe also released the Flash 10 beta for Linux, as well as some other desktop operating systems you may have of heard of: Mac OS X and Windows.

On July 2, Adobe released the second beta of Flash 10 on all three major desktop operating systems, and I think we may just have something special here.

More Here