I switched and I love it. I tried different roms on tp2 and at some point they all started to slow the phone down. WM is nice but outdated. I like Evo a lot and i dont have to wait to load camera
which i really hated with my tp2. I would never switch to iphone couse i think it is for retards. Android seems like has a good future. MS gave up on wm and their updates are no updates. Evo feel nice and looks nice. I also kept my TP2 only couse it is a world phone which I need when i travel to Europe. So the bottom line is Im happy with my new Evo.