I have had my G1 for about a week and a half now and it is amazing except for the fact of the slow release of the much awaited Adobe flash player that should be released anytime now. I have used the G1 on aprs.fi and it works great. The zoom and navigation arrows on the map take some time to operate, but the map automaticly refreshes and repositions with the movement of the tracked callsign wonderfully. Just as on a regular computer hooked to the web, I can see my d710 transmit my position beacon and within a second or two it is updated on the aprs.fi .Last weekend there was a balloon launch in Lake Charles, LA and was able to watch in realtime almost. It was interesting. It could be a very useful tool in a situation where you are trying to track team members as long as you are in an area where internet is available and digipeaters are still functioning. It is just cool to know that you can track fellow hams around the world in the palm of your hand. I would like to see ham related apps developed. Right now I haven't found any. I did find a website www.heavensabove.com
that after registering you can pull up the latest amateur radio satellite passes and other neat things like when viewable satellites are passing over. Even if you don't have a G1, it is a very useful site to go visit.