While most of you would have preferred this be an iPhone 4S or Galaxy S II, it can't be denied that everyone loves getting free stuff, especially if it's a new model smartphone and that's what Nokia's giving you the chance to have with its latest (yet to be launched) Windows Phone 7 running Lumia 800.
If you head over to this page on Facebook Nokia is allowing you to enter into a sweepstakes comp whereby you'll then be in with a chance to score one of five brand new Nokia Lumia 800 smartphones. This is one of those deals where if you round up all your fb friends (refer to the "INVITE FRIENDS" link toward the bottom of the aforementioned fb page) and get them to enter too, you automatically increase your own chances of winning the phone.
It's super simple and quick to register so you may as well! - And good luck!