We'll let our pal Casey over at Android Central (hi, pal!) do the heavy lifting here. But that HTC event in London this morning? Heavy on Android, light on Windows Mobile. (The success of the Touch Diamond was touted, apparently.)
Also of interest to you WinMo peeps is that the new phone and UI will be the first to support full-on Flash. You'll recall that we're expecting a Flash 10 beta for Windows Mobile sometime this fall. We're unsure if that's what the Hero is getting, of if it's something different.
So, HTC has been hard at work. And it reasons to say that they're still hard at work on Windows Mobile, so let's hope we see something new from them in the coming months.