An interesting topic. I use an Ipaq 5555 with a wired GPS, it works well but I don't really like the 5555 (size, slippery, battery life) and was thinking about changing it for something else, together with a BTooth GPS. On face value it seems good to add-in a tri-band phone but all the eggs are in one basket then, and all competing for the battery when the supply goes.
How well do these BTooth GPSs work in practice? Presumably they need to see the sky so you can't really have it in a shirt pocket(?) What about battery life? Any recommendations?
There's a wide range of PDAs available - buying the 5555 was a mistake so what comes recommended with an equally good screen, better battery life but that's slightly smaller and more easily held?
HFD