oooooh the plot thickens! lol
tbh battery life wouldn't be a concern for me, it charges at home and from the work computers, and in the car...i dont seem to ever be very far from electricity lol
as for straight battery replacements, what are the options given the size constraints?
Tomtom's are linux-based too. Do you have any idea what bluetooth chip is used in it?
when i get back from work tonight i'll crack it open, i remember taking it apart once before (curiosity
) it had a standard cell-phone style battery in it, reminded me of an old nokia lol, i haven't used it in months but its held its charge very well lol