Adobe released Flash 10 "square" on the 15th to coincide with IE9. Apparently this update can take advantage of the GPU/Multi Core support in IE (mentions 35% performance increase in benchmarks..)
Keep in mind that this is a beta version of Flash. This is the version of Flash that they're recommending you use with the IE9 beta. I'm trying it out on a virtual machine, but I'd be wary of putting it on my main machines.
ByronM
2:16 pm on Sep 19, 2010 (gmt 0)
Yes, it is beta. With that being said, it runs great. I wonder when we will see silverlight updated to take advantage of IE9 GPCPU multi core support.
MilGal
11:57 pm on Sep 20, 2010 (gmt 0)
also ie9 beta runs great! i love it! it's awesome, it's faster, and lightweight