If you've seen Facebook's Developer Conference “F8” today and like the way your Facebook profile is going to look in the future as “Timeline” , and you want one sooner, Here's How to sign up for Facebook Timeline Now.
Update – Timeline Profile now available Worldwide, To Get Access to your Facebook Timeline Profile – Click the Introducing Timeline page and click “Get It Now.” Or you can wait until you see an announcement at the top of your profile.
Please note that you only have 7 days from the time you activate Timeline profile to check your privacy settings and control what information will be shared among your friends.
**On December 22 2011, Timeline will be rolled out to all facebook users worldwide and You CANNOT Revert back to your Old Facebook Profile**
Introducing Facebook Timeline
Facebook now has a page about Timelines, and there's a button at the bottom for signing up. So login to Facebook and Scroll all the way down on the New Facebook Timelines Page and click on Sign Me Up!