In Pictures: 15 coolest gadgets at Macworld/iWorld...
A lot has been made about smartphone and tablet battery life, and rightly so. Used moderately, the iPhone and iPad have a tough time making it through the day. While battery packs have been available for a while, the HyperJuice Plug is a simple way to keep your devices charged while on the go. They come in neat colors, too. Starting cost: $129.95.
In Pictures: 15 coolest gadgets at Macworld/iWorld Expo