evldave,
Can you comment on the mediocre customer reviews of the earthmate on cnet:
http://reviews.cnet.com/DeLorme_Eart...98.html?tag=mp
I know these are all old, but I haven't seen newer reviews yet. Other than getting the Earthmate to work with other software, have you been happy enough with it?
The Earthmate does look nice, especially since there's an optional external antenna you can mount up on the roof. I'd be willing to route the coax from that in through the markers and out of the overhead console somewhere.
However, I don't see the adapter that allows you to upgrade the USB Earthmate to be battery+bluetooth enabled on their site. The cnet review shows this product, but I delorme doesn't seem to be including it on their site.