[sugosugita]

I'm just a noob but WM 6.5 seems more stable and overall better OS than my stock 6.1 was. My push email still works fine after flashing, but i don't have any accounts set up on exchange server.

There are plenty of WM 6.5 devices out there running fine with corporate exchange servers. I'd steer away from the super custom ROMs just to be safe though.