Just noticed this button when I checked the Facebook app in my iPhone yesterday:
Foursquare on your phone gives you & your friends new ways of exploring your city. Earn points & unlock badges for discovering new things.
You can’t use your computer and its internet browser to check in to places using the Foursquare service. You may only check in using your phone with GPS enabled.
Loved the app in my iPhone. The problem is the inaccurate pins. These usually happen when other people have previously checked in into the establishment with inaccurate GPS location to start with. To add insult upon injury, there’s no clear way to correct these inaccuracies either through your phone or the desktop browser. Yes, I’ve checked out the support pages.
Facebook Places, posing as Foursquare alternative, is not yet available for iPhone users in the Philippines, although I’ve read somewhere that it’s already available for Blackberry users (in the Philippines). Once Facebook Places is out, Foursquare could simply die down, I think.