[Oxyacetylene]

Mine had the same keyboard problem. Mine is also a VZW model, not Sprint. When mine locked up I could wait for a while and it would unfreeze and start working again...but not for very long. I tried multiple soft resets and finally a hard reset. I flashed the ROM shortly after getting the phone but the problem started almost 3 months after flashing that ROM and me not changing anything. The got a refurb replacement under warranty. The replacement phone's keyboard feels different when typing. It doesn't have the snappy tactile feel of the old keyboard. This one feels like the keys are harder to press and don't snap/click like the old one.