I have the iQue 3600, and we wouldn't cache without it. I download my .gpx files, run them through a waypoint converter to get all the waypoints to show up on my map screen. Then I convert the file with GPX Spinner and upload the html file into iSilo, thus giving me every web page for every cache, right in my hand. We just keep the thing in the car, and when we feel like a geocache, we are instantly set to go. I just update the waypoints about once a month, and the rest is history. By the way, I know it sounds a little complicated, but it takes about five minutes and is mostly automated. If anybody needs a little guidence, just let me know.
