I'm running WinMo 6.5 on a Touch Pro (until my N900 shows up), and in my opinion it's not going to save the sinking ship that is WinMo. Even with all of the new HTC programs (TouchFlo 3D and other finger friendly apps/notifications/etc) to help WinMo along, 6.5 still seems too outdated and inefficient. Based on what I've seen of Maemo from videos and running on the SDK, it looks far better than 6.5 ever can be. I'm excited