I too was a 6700 user and avid Rom trier-outer. I made the switch strictly for this phone. I miss Verizon's service in the boon docks, however, that is all I miss. Rollover is great! HSDPA is fast. Having a sim card is nice too...easy to copy and paste
Roms are abundant. I suggest Dutty's v3. You will have to upgrade the keyboard & radio aswell. I don't know what else to say but make the switch. However the HTC Touch Cruise is on its way. At a glance, it looks like identical hardware except for the navigation pad. I digress...just make the switch. Its very fast and has a ton of memory. Its very strange to have the ability to install nearly everything (with the exception of big games) to you device. MAKE THE SWITCH!