I saw a Pharos i500 GPS (PT250) on Dell for $65 after $10 rebate. I had one of these I used with my Axim X50v and it paired fine through BT with my N800. It was very accurate for as little work as it took me to get it paired and working with MaemoMapper. I've also found this unit to have an excellent battery. We have had it over a year (last Christmas), and though, I have rarely used it, I haven't charged it once in the last year and was still able to get it to work with my N800 last week and drive around for a while to test it. I don't know if this is typical, as it's only rated for 11 hrs of battery under continuous use. The specs don't state how long the standby is, but evidently, it's a LONG time!