Kensington's AbsolutePower might make things less frustrating for traveling professionals who never have enough power outlets in their hotel rooms. The compact power brick can juice up your laptop, iPhone, and one more device (up to 100 watts in total) thanks to the addition of two USB ports — one's a microUSB, but there's a full-sized adapter. A set of Smart Tips offers compatibility with most Windows PCs, but unfortunately there's no MagSafe connector for Mac users. The whole package isn't much larger than the iPhone it'll revive for you, and it'll cost $119.99 when it drops.
Source: Kensington, via Mobile Magazine