If you search on youtube there are quite a few videos out there for the Hero right now. The more I watch them the more I want this phone. At this point and honestly don't care which carrier it comes out on in the US. I'll make a switch to get it. Watching this video in particular sealed the deal for me:
http://www.coolsmartphone.com/news4844.html
... the excellent implementation of predictive text entry looks fantastic!!!
Also, this video makes for a great showcase of the phone's flash capabilities:
http://www.youtube.com/watch?v=QZLOndllpUM&NR=1
All this in combination with not having to deal with WM horrible interface (which is still near impossible to escape, regardless of which UI you throw on top of it) makes for a very enticing device.