My latest app (Convoy - http://convoyapp.net http://convoyapp.net) is a live map display of where you and your friends are. It uses internet and location servic

My latest app (Convoy - http://convoyapp.net http://convoyapp.net) is a live map display of where you and your friends are. It uses internet and location services very heavily, yet I developed it almost entirely using an iPod touch, despite it's lack of 3G and GPS. I don't have to do any detection, the internet and location API's hide all of these details for you. In fact I tested the app using my android phones wifi hotspot feature and the iPods wifi based location access.