yes, autolock "supported", because it waits for two conditions: a) screen brightness==0, b) touchscreen is locked.

My n800 does not turn backlight on when alarm awakes it in 1 minute in order to kick 63-second watchdog. In two weeks I'll get bt-keyboard and test it. But, as to bt-GPS (globalsat bt-338), it works normally: maemo-mapper asks to reconnect and it is reconnected, if bt-gps is turned on.

It seems, n800 and n810 are different slightly from each other (for example, I heard about colors in keypad leds). I'll read about it over internet.

In 1.0.9 (yes, it works, not hangs, I tested several times.) contains code to switch-off blinking, and symlink to n800-s2ram-batt which shows charger and battery voltages, battery percentage and temperature as well as timestamps.