As a two-time hackathon build master, I want to tell you how fantastic this is... great job! For our last hackathon we had a dashboard showing real-time Github commit (and commit messages streamed with websockets), which people enjoyed watching, but to have all this would be way beyond that! I'd love to see the source code. :)
Op:Can you tell us what you wrote this app in? How are you getting the real-time activity, are those wi-fi access points, bluetooth phones or motion?