Does anybody else find that the Camera application is slow, and occasionally locks up the unit? What I see is that for the first several seconds after starting, the camera app's update rate is fairly fast (though not as fast as the video call app - about one-half as fast). After a few seconds, then the video update rates slows down to about an update a second. Then after a few more seconds it stops, and the unit is pretty much locked up. Sometimes I can close the camera app, sometimes I have to reboot the unit (by holding down on the power key for several seconds).