Halverson’s frustration about Foursquare or any other venue check-in application, is having to remember to actually check-in when you arrive at some place. This led him to develop a prototype of a Nike shoe check-in plugin for Foursquare. Instead of having to lug around your laptop, or connect to the local WiFi, you could also have your Nike shoes (or sensor in generic shoes) check in for you.
“The backend device would need to be located in the venue, but it is internet-independent, low power, and can be located anywhere in the world. (…) Currently, its on an electronics bread board and rather bulky, and it talks to Foursquare directly…but it (mostly) works.”