On the screen lock thing i cant really pinpoint anything except that i believe i have found my n800 with the screen on but buttons locked. A combo that should not be possible Iirc as the screen turns of when the lock is turned off. On the charge while of part its mostly that one can open the power menu while the device is charging, with on way of getting it to go away again Iirc. And i think the animation do not animate properly.