The wait is finally over! Jeff Wilcox, the Microsoft employee who has developed the Foursquare app 4th & Mayor for Windows Phone has released version 3.0 of the popular app. The new version supports all the fun things Mango brings to Windows Phone including Live Tiles and the ability to pin friends, yourself and even a quick check-in tile to your Start screen. 4th & Mayor requires that you have a Foursquare account, which is free. The app itself is also free. A full review of 4th & Mayor will be coming later this week.