+1 seeing spontaneous reboots. And rebooting takes forever (5 minutes is forever for a phone).
+1 seeing while on Touchstone lock icon shown but background is either wallpaper or active application.
Sometimes sliding the lock icon up does not work. It seems to not be sensitive to touch for several seconds in these cases.
On the plus side my battery life has been better in 1.4. Calendar works better as well.