Seen at CES 2012: Third Rail Case & Battery System for iPhones

There are tons and tons of cases for iPhones on the market today. At CES, Third Rail unveiled their case and external battery system for iPhone 4 and 4S.

• Ultimate 3 in 1 Solution - sleek protective case always, power case when needed, universal backup battery for your other devices
• Travel Lightly - Unlike traditional bulky power cases, add battery only when you need it and remove it when you don’t
• Universal Charger - Use Smart Battery to power 100s of other devices
• Thinnest battery enabled case on the market
• Road Warrior? - Have multiple batteries on hand (sold separately) and swap them out for longer periods away from outlets 

See the video showing a demonstration of their capability on the vendor's information page near the bottom:
http://bit.ly/w13TX2