Today, while browsing with tear and switching windows with telescope, my n800 froze and rebooted, then it entered a reboot loop (every time it showed the hands it flashed the led and rebooted). I used flasher to disable the lifeguard reset and I managed to boot the tablet, but now there's no sound at all (not even the greeting nokia tune).
No suspicious messages in dmesg (apart from a "JFFS2 warning: (940) jffs2_sum_write_sumnode: Not enough space for summary, padsize = -23").