During the BlackBerry World Keynote in Orlando this morning, Research In Motion announced that it is working with foursquare to include support for the social-network in an upcoming version of BlackBerry Messenger. Users will be able to share their location information as their BBM status, but RIM execs didn’t go into much detail on how check-ins will work or just how feature rich the implementation will be. The native foursquare client, for example, allows users to find nearby deals, compete with friends for check-in points, and more. RIM did not say when the client would make its debut, although we suspect it will be around the launch of its BlackBerry 7 powered Bold 9900, which will occur later this summer.