Hello Everyone,
I use Avant-Go and it works great! I use it through a totally free site called Heavens-above.com, they provide up to minute information for visible sattelite passes based on your location. You can't get a higher demand for up to date info than that. The main reason I am telling you this is that if another niche information site is using avant-go than perhaps they could help gecaching.com talk to the right people to get a more reasonable solution worked out with them.
By the way, you should check out heavens-above.com so that you can watch the space station or the shuttle go by with just your eyes, and be on the look out for a -8 magnitude iridium flare... truely an amazing site.
Talk to you soon,
-Roger