Device to recharge your devices on the go

Also in Travel and Leisure (June 2011). They talkd about a new rechargeable backup battery you can use with your computer and handheld devices. Features a "micro-usb and apple connector to recharge your devices on the go". "No outlet necessary". It's called Powermat Power Dual 1850". Haven't looked into it yet but seems like it could be useful especially if you travel a lot.