I've got a Verizon 8330 Blackberry. For about 2-3 weeks I've had the problem where the courser turns to what I would describe as the MS hourglass. It stays like that, giving the appearence that the device has "locked up" requiring a battery pull to reset.
I've also gotten a java script out of memory error. Have looked at the system settings, and it appears that I have enough memory.