Wiki page is a good idea. I've spent a lot of time researching the N810's internal GPS operation and continue to update my Maemo Mapper howto with info on getting the internal GPS to work. I'd volunteer to do the Wiki but I'd want to have some practcal experience with a BT GPS receiver before I did that. If somebody has an older functioning device they'd like to sell at a reasonable price that would help me get started. I'm retired and carefully watch what I spend on new toys.