I'm about 3 weeks into my fist BB ownership - so far enjoying it, finding lots of nice features.
One thing that is annoying me though - when i have a low signal, and I take a phone call, after a few seconds, the call disconnects, signal drops, and phone reboots itself. This has happened 3 times today - in the same place of my house. It did it somewhere else a few times in another house, with low signal coverage as well.