I tried an iPhone back in March and took it back after 2 weeks because the signal strength in my area was not good enough. They upgraded the network here in Austin in May to 850mHz and when the 3GS came out I tried again. It was good - as good or better than my Sprint service. Neophyte networking question - will the 7.2 HSPA upgrade (Houston is one of the first cities targeted so I assume Austin will follow in a short time) help further improve signal strength. I understand the pipe is bigger for faster data, but does this also provide better tower connection? Or was the 850mHz upgrade the best we can hope for short of more towers?