There is something to be said for simplicity, especially when it comes to applications that leverage web APIs for mobile devices. Enter Sparrow, an application for the iPhone, that serves as a good example of how a few web APIs can be elegantly implemented for use on a mobile device.
NextStop was building a new kind of city guide and giving away all the content. Now its team joins Facebook, a company as famed for being closed as for being one of the largest sites around. The NextStop site, and its API (our NextStop API profile), will close September 1.