Just bought a XP8000 Energizer PowerPack from buy.com, it came with a so-called "iPad adapter" (product link, web-site contains a typo, the actual model is PC007). It was not in the original XP8000 box but included with the purchase. I can now charge my phone with this adapter from a dumb USB charger that wouldn't work before with a standard data cable. It's ridiculously pricey if bought separately ($10 - $20 + S&H), but if someone is considering a back up power pack then XP8000 + PC007 for $49.99 seems like a reasonable deal (link), considering you can use this charging adapter with other sources.