Foursquare 3.0 for Blackberry has a lot of improvements when compared to its earlier version. As Foursquare blog says, there are a lot of improvements made in the UI. You will also get to enjoy tons of new features.
On Foursquare 3.0 for Blackberry, you can get personalized recommendations for places you may be interested in visiting based on your previous check-ins and also the check-ins from your friends and your community. Besides that, you can search for whatever you like and look for deals using the “Specials” button. The “Specials” button will let you see the daily deals around you. These deals will be pulled from LivingSocial, Gilt City, BuyWithMe, YP.com and Zozi. The full leaderboard design lets you have a quick overview of what you are doing as compared with your friends.
You can download the Foursquare 3.0 app for Blackberry here. Foursqurae has said that they have been working on this for quite long. The Foursquare 3.0 app for Blackberry will also have the BBM integration very soon as Foursquare announce in their blog. They are giving finishing touches to the BBM integration on Foursquare 3.0 for Blackberry.