In the process of updating its website to include further details of the iPad, Apple has quietly provided some new information on the differences between iPhone OS 3.1.x, which currently runs on iPhone and iPod touch units, and iPhone OS 3.2, which will run on the iPad. Notably, the Maps application on the iPad will support Google Maps’ “Terrain” view, which is currently unavailable on the iPhone and iPod touch. The iPod application‘s…