Foursquare adds fun to discovering places such as your home town, with Foursquare you can earn badges by discovering new places in your town or any place near you.
What blackberries support Foursquare?
All 8000 & 9000 series devices (read: anything with a trackball or touch screen). This version will not work on older Blackberry's (those without a trackball or touch screen)
Share your location with friends:
find locations or share you current location with friends:
earn badges by visiting places:
check out the Foursquare video review: