Everyone knows there's a significant overlap between the information junkies and caffeine cravers. To assist the mobility of this hyper set, Grey Stripe has created the Caffeine Finder for BlackBerry users. With over 45,000 U.S. locations mapped and reviewed plus way-finding features for GPS enabled Berries (Nextel), this free little app seems like a must-have. It even includes the ability to read and write reviews of each venue. This kind of stuff has been around on the Palm for awhile, but availability for the BlackBerry is much more recent.