Uncommon Goods USB Typewriter If you're really into nostalgia, this pricey ($799) accessory docks your iPad on a fully functioning Underwood typewriter. Remember those? The USB Typewriter from Uncommon Goods works with any USB device, but to use it with your iPad you'll also need the Camera Connection Kit.
The Cordless Pocket iPhone And USB Charger. This is the pocket-sized battery that charges an iPhone or any USB device. Eliminating the need to carry multiple chargers and power cords, the battery provides 25 hours of talk time for iPhones and Android smartphones, and 4 1/2 hours of use for an iPad. With a 30-pin connector for Apple products, its USB cable has built-in connectors that enable use with any device that recharges with a mini- or micro-USB port