It would be cool to have an input of my account and have it spit out users that live near me that have contributed to projects I own or contributed to projects I also have contributed to or am watching. It would be fun to meet up with some devs in person. Really taking the 'social' context of coding to the next level.
It would be nice if I could click on a state on not just pre-selected towns or could put in the url such as my town WalthamMA and show those in Waltham MA (two towns over from cambridge).
I am a little curious how you detect where I am. For me it shows "Philadelphia", which is indeed the city nearest my hometown, but I am currently at my college in Minnesota, so my IP address would show that I am there.
(Sorry to be snarky, but my god man, change that color scheme...)