There is a pretty interesting new project on Kickstarter for the POP Charger. POP includeds a huge 25,000 mAh battery along with 4 iPhone/Micro-USB retractable cord reels which is enough juice to charge 10 iPhones or about 4 iPads.
POP is well on their way to raise the initial $50,000 needed for the creation of injection molds and tooling for the first production run of POP. The early bird specials for $129 are all gone, but you can still pledge $149 to this project to receive a POP recharger backer reward.
This project is nearly halfway to their $50,000 goal with 44 days remaining..