A week ago Foursquare for BlackbBerry v3.0 hit the scene, but, without the BlackBerry Messenger integration that we saw when while in alpha. Today, however, Foursquare for BlackBerry v3.1 has been released and BlackBerry Messenger integration is back. The Foursquare for BlackBerry 3.1 change log indicates a few incremental updates to the user interface and application performance, so, you should probably download it even if you don’t care about the BBM integration.
Download Foursquare for BlackBerry v3.1 from BlackBerry App World