I am getting confused with all the option out there for a portable battery for my iPhone 2G. In short, I just want a good battery option for those time when my phone dies and i don't have access to a wall outlet. My research has let me to this one, but I was hoping for other options as well. I would also like it to be low priced as long as the performance/quality is still high. Just Mobile Gum Pro - $60.00 http://www.ilounge.com/index.php/reviews/entry/just-mobile-gum-and-gum-pro-portable-usb-power-packs/ Please provide products name and links if possible. Thanks for the help.