Something interesting I would like to share, it's possible to use to use Facebook Places and check in using Opera Browser however you need to download the most up to date version from their website: m.opera.com. Then navigate to touch.facebook.com and tap on Places and you can now share your location, tag your friends and write a small message.

Checking in yourself is fine. Have you actually been successful in searching for and tagging friends?

I can't make it work, don't think Opera is sending the search text back in a way Facebook expects.

Yeah you're right, they've changed it recently. Can't search for friends or scroll through the list, it was working perfectly last month.

Edit: Why is it so difficult for Nokia to produce a Facebook app with a check in feature/notifications?