Go out and Gowalla !

Gowalla is a free iPhone app that lets join a social location based ' game ' .
The goal of Gowalla is to create, found and sign in at spots on the go. While signing in you can earn items that you can collect or use to create new spots. You also get pins for completing goals and trips that where set up by the Gowalla team.

I think this is a really fun iPhone app because you can start creating your own spots and you can easily share them with friends. Another reason is
the game element behind Gowalla that makes it fun and challenging to use.

If you have an iPhone I advice you to try it because it makes boring trips a lot of fun ! You can find more information on Gowalla.com and download the iPhone app using this iTunes Link. 

BTW the iPhone app looks SWEET ;-)