Here are my 2 hacks at the Foursquare Hackathon
Accessible NYC is mashup which gives information about which Subways, Parks, Playgrounds, Restrooms (the usual Public places) around you are accessible (meaning accessible via wheelchairs). This was built using Foursquare, which has a wealth of data on places in the city and the NYC Gov data, which has information about which public places like parks, subways are accessible. It was a good challenge (need to make to more robust) trying to harmonize the NYC Gov data and the Foursquare Venues data.
The second hack was more of a quick 2-hour effort, which was to be able to come home and talk to your computer and check into your house. Has been tested only Chrome (on Windows) and uses the HTML5 speech input feature and the Foursquare checkin API.
Feedback from the people.
This was fun