Check this out: Amzer 3500 mAh Battery Backup Solar Charger For Motorola - Motorola Droid A855 - Fommy.com It's like one of those portable phone charger batteries, but can also charge itself via the sun, ac/dc adapter, car charger, or your computer. This would be AWESOME to have on a plane ride or any other instance where you want extra capacity without having to plugin to the wall. I also don't want a giant bulky battery and door protruding from my phone. It is big enough as it is. We don't need to make it any bigger. This is probably next on my "to-buy" list.