Device API is what interests me the most! (even if I'm nowhere close to be a hardware engineer) I feel like it really opens a new field for the iPhone. I'm not

Device API is what interests me the most! (even if I'm nowhere close to be a hardware engineer) I feel like it really opens a new field for the iPhone. I'm not quite sure what would be a great application for this yet (the examples were ok but not ground-breaking), but I really like the idea of the iPhone being able to control a bunch of stuff...