Did you download the free trial of Cs5 on the adobe site!?
I did last night... I'm not sure yet to upgrade, BUT, since the trial is a 30 days full version of it, I thought to download it and give it a try. Haven't had the chance to play with it yet... Even if I have to say it is pretty faster than cs4, even on the same computer.
Anyone is trying it yet?? If you find something cool post it here!!