Loopt
I’m intrigued by the semantic web possibilites of loopt. The application uses your GPS in the cellphone to track where you are—and your friends.
Now that could be cool. You put in “pizza” and it tells you where a good pizza place is within your friend radius. This could have really cool uses for student trips.
Obviously, this can be troubling as well (“why is my girlfriend at that restaurant with Bobby?”).
