I swapped my sim back into my iphone and decided to play around with my captivate. I decided to install the JH2 firmware and followed all the steps even disabled the GPS logging. The phone seems alot snappier, but it could just be me. I also, set my GPS settings to the recommended of supl.google.com, etc. I went outside and within about 15 seconds got a lock in google maps and accuracy started at 10 meters then eventually to 5 meters. I then jumped on the bike and rode around for about 15 miles going through town. Maps kept up pretty well and most times when I checked the accuracy was at 10 meters. This is WAY different than the stock firmware, google maps was pretty useless even with the settings. I know this isn't a final release but it seems at least that they are getting closer to getting the phone perfect. Just thought i'd share my experiences.