Places stopped working for me ... worked well a week ago ... now i do get a gps lock, but there are no entrys shown when i tap "check in"
also no more check-ins of friends are shown ...

has this something to do with the launch of the new m.facebook.com.site? touch.facebook.com now redirects me to this crappy new mobile site and i can't check in there either (can access Places page, where it says "share with your friend where you are" but there's no button to check-in anymore ... this worked fine with Firefox mobile 4 until now )