Mashable just reported that Facebook has released the new profile layout a bit ealier than expected. They were supposed to start offering it tomorrow.
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The most obvious changes are the inclusion of some of your info items and tagged photos at the top of your profile and what used to be your tabs are now in the left navigation bar. Not sure if I like it, but like everything else Facebook randomly changes with little notice, I guess I will get used to it.
You can get your new profile layout by logging in and going to the Facebook official announcement page.