Kismet will crash if your screen goes blank while running it on an N800. I assume the n800 sends some kinda code to kismet telling it that the screen has blanked, and kismet goes 'wtf?! c-ya!' and causes your n800 to reboot.

I'm unsure if aircrack-ng works correctly on the n800. Kismet's 770/n800 driver had to be written to throw out bad packet information from the wifi card. I don't believe anyone has added that to aircrack-ng (for free anywyas, I hear the core security guys have a $2600 770 with a modded OS that can run aircrack from a gui)