Last year Facebook has revealed Timeline, an entirely new kind of profile. Until now Facebook Timeline was optional. However Facebook announced on its blog that over the next few weeks all users around the world will get Timeline whether they want it or no. When you get timeline, you'll have 7 days to preview what's there now. This gives you a chance to customize your profile and add or hide whatever you want before anyone else sees it.
Of course you can get Facebook Timeline right now. Just go to the Introducing Timeline page and click "Get Timeline". For more information you can read this blog post.
I am sure that once this will happen hundreds of group will be created like "We don't want Timeline", "Timeline sucks", "We want the old profile back" etc.
Are you using Timeline? What's your opinion?