Hacker News new | past | comments | ask | show | jobs | submit login

A fourth example:

A game where you try and assassinate your friends by setting imaginary time bombs to go off at a particular location when you think your friend will be there.

Of course it could also be built on top of something like Loopt or BrightKite if you and your friends compulsively check in everywhere you go.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact