CaseInity ( has announced the Cord-On-Board, an US$29.99 iPhone case that compactly carries a USB cord alongside your phone.

It offers the ability to charge the iPhone on-demand through a USB port. The USB cord also allows for interfacing between devices. The case is slim, contoured to your grip, shockproof and self-standing, says Nate Trunfio of CaseInity.