My friend Chante Newcomb has a great article on changes happening with Foursquare with links to a Mashable article.
I use this great social location platform on my phone. Foursquare has a lot to offer businesses and individuals alike. You can share by “checking in” when you visit a shop, a restaurant or other location. For business you can offer specials who check-in to drive people to your location. Its a win-win situation for both the user and businesses. What do you think?