Up until now, if you wanted to use the location-based service Gowalla on the go, you had to have an iPhone. Today, that expands to Android. But rather than building an app, Gowalla has extended support to Android using the mobile web. This works because Androids browser is closely tied to the device and is able to access location information, which is vital for Gowalla. The goal is to extend this mobile web support to BlackBerry and a few other location-aware devices in the next week or so, co-f