"Flash" is the ultimate misnomer
The other side of poor Flash performance is the lousy video decoding. Flash video playback often pegs my CPU on standard def video and drops frames if CPU thermal throttling or battery throttling kicks in. Meanwhile Divx and even DVD decode handle the same resolution and higher bitrates without breaking a sweat.
The wrong guys won the video format wars. (Of course Quicktime might have won if Apple hadn't f-ed up as usual.)
Biting the hand that feeds IT
