For those of you who don't know, Gowalla is FourSquare's original competitor, but simply got trounced in the marketing war. Although I haven't used it much in quite a while, I actually thought Gowalla had a better interface than FourSquare in the early days. Anyway, Gowalla recently released version 3 for the iPhone, allowing you to now check in on both Facebook Places and Foursquare in addition to sharing with both Twitter and Tumblr.
"Today you can now connect both your Facebook and Foursquare accounts in order to keep up with friends across multiple services. We've combined them all into a single, connected activity feed with all your friends, regardless of the service they checked in on," said Josh Williams, CEO of Gowalla.
Will this make any meaningful dent in the location-based wars? I haven't checked out the new app version yet, but it does sound interesting!