Online retailer I Want One of Those today listed the Scotty Pro, a portable solar charger that its creator says can not only revitalize USB devices low on power but dramatically extend their use. When fully charged, the Pro can drive some PDAs as long as 15 hours by itself; even a thirsty device such as a cellphone will last for an additional hour of continuous talk time, the online store claims. Charging the device itself takes 7 hours from either the sun or the power outlet of a car or home, but can be given a quick burst from a pair of AA batteries. The Scotty Pro has been tested with iPods, cameras, most USB-equipped cellphones, and other key devices and ships in the UK for $99. [via Ubergizmo]