Socialight - user-generated sticky notes all around the World - LBS social networking at its finest!
Another one of those way cool technologies on display at the recent CTIA Wireless IT event was socialight - i actually first saw this app and met the founder last year at CTIA when the service was first in Beta. Socialight is essentially location-based social networking where the users share sticky notes... any time, anywhere. Using your cell phone location of a GPS fix, socialight knows where you are and delivers the information you need based on that location. What's cool about socialight is that it's already very popular... social networking services like this really are only useful if there's loads of users and loads of user-generated content so they are well on their way. See socialight.com to grab an account - promo video below: