Mobiletracker is what I've been looking for, so I purchased it last night. It's installed correctly, and a quick test of a few data points worked well.

However, I did some longer tracks which included going into and out of GPS range. For those, when I went back and selected "stop tracking", it came up with "0 KML events logged." Sure enough, the kml file was empty.

• lack of GPS signal while in buildings
• Putting 8800 in/out of holster
• Making/receiving phone calls
• Ditto on email messages

Have anyone had enough experience with this application to know the limitations or why it's not logging events. So far, it might be:

Loving the 8800 and BES Express, now looking to get full use from the GPS capability!