Third-party foursquare app 4th & Mayor released a big update late last week that takes advantage of some of Windows Phone Mango’s new features. Along with the usual bug fixes and tweaks, it includes a few big new features:

• New Live Tile Studio for organizing, customizing, renaming, and enjoying pinned places.
• Supports Windows Phone 7.5 features like fast app switching
• Lists support from Foursquare, the new way for sharing information about places and tips, replaces “todos”
• Maps of nearby friends
• Checkin photos appear inline when looking at all your friends’ check-ins
• You can find more friends quickly by searching through your phone’s contacts

Related posts:

1. 4th & Mayor has ousted the official foursquare app as mayor on Windows Phone 7 — at least for now
2. 4th & Mayor updated to v2 with lots of enhancements
3. 4th & Mayor ousts official foursquare app as Mayor on Windows Phone 7