Via a blog post today, foursquare founder Dennis Crowley announced an updated version of his company’s software that will be available to users “late tonight.” Reminiscing about his company’s past, present, and future, Crowley admits that he and his team have not been able to “expand the foursquare experience as much as they hoped to” over the last year. But that all changes today. Focusing on discovery, encouragement, and loyalty, foursquare will deploy several new features to its iPhone and Android applications (version number 3.0). Through a new “Explore” tab, users can input what it is they are looking for, getting recommendations from 4sq based on what’s around and where friends have visited. The company will try to encourage users to continue to explore their world with a revamped leader board. “You’ll see that we’ve replaced our old leader board (and its simple points system and Sunday night reset) with a sliding 7-day barometer of you and your friends,” writes Crowley. “Check-ins now trigger points for dozens of different types of actions.” Loyalty will be addressed by offering merchants additional ways to reward “swarms, groups of friends, regulars, newbies, or everyone.” Merchants will gain access to the new controls later this week. In closing, Crowley writes, “we’ve got really ambitious plans for the rest of the year and we’re excited to let you play with three big new pieces of the master plan.” Foursquare notes that an updated BlackBerry client is due out later this week — though it will not include many 3.0’s features — and that it is “working hard” on its Windows Phone and Symbian apps.