Adrian Ludwig demonstrates Flash on the HTC Hero, browsing websites that have Flash content; and I have to say, it looks good.
He starts at Yahoo! Movies, and loads up a trailer for Transformers 2. A good call with anything involving Megan Fox(y). He demonstrates that double tapping on a video brings it up into full screen mode, for full screen Megan goodness. He then demos a game or two just for flavoring and a heads over to Expedia.
[Thanks, longhairedsi]