I'm jumping ship from my Touch Pro 2, I love my TP2 but I would love to have access to all the apps Android is getting and the features and Android OS is one of my main reasons for wanting the Incredible.
I will be keeping my TP2 since i do alot of Manila mods and i'm currently still working on a few, and the fact i can switch back and forth and vice versa is a plus, :P
Key features that interest me:
1GHZ
3.7 AMOLED multitouch
Full Sense UI
Android 2.1 OS
8MP dual LED flash camera
720p video recording? (need confirmation on this one)
Live Wallpapers!? :P
Style of the device
Optical trackball!! (no ball like Nexus One)
Although I've never used Android besides on my TP2, I hope i'm making the right choice with converting over to another OS. I like Windows Mobile but if it were without Manila 2.5, I think I would throw my TP2 at a window, the UI for WinMo is terrible and app support is mediocre unless you do alot of searching for what you need.
One thing I haven't found that I use alot on my TP2 is wifi sharing, i use this alot in the car and at home, but its not a required feature.
I just really really hope the switch is worth it