I've seen the many posts of iPhone users lamenting the limited battery life. I guess whatever the battery life is, I would still be asking for more. Anyway, my wife saw the Mophie Battery Pack on Fox News and she got it for me for Father's Day. I've got a 16GB iPhone and I use it heavily. My useable time for my iPhone has, at a minimum, doubled. I have no idea whether the Mophie folks have a battery pack that will benefit the buyers of the new 3G iPhone. Has anyone else had experience with this device? It's NOT cheap but it may be worth checking out if you're running out of juice faster than your comfort level about your iPhone battery.