A friend and I developed this as an MVP over three weeks. It aggregates geo-social data from Foursquare, Twitter, Instagram and Flickr and uses those signals to show real-time social activity in San Francisco and New York.<p>We have plenty of feature ideas for the next version (including, most importantly, a business model that also adds value for the user), if this first release shows any signs of success/traction. If not, we're also developing other web / iPhone / iPad apps (we aim to release one per month).<p>Comments are welcomed!