Facebook is going to transition all users and pages to Facebook timelines today!
My personal recommendation is that you backup all your content on your profile and all your business and fan pages. When I transitioned to the new timeline format as one of their early adopters, just over 1000 of my personal friends were lost in the transition.
NOTE: To date, Facebook has been unable to help me restore those long and now lost friends on their site. I may not be able to get mine back immediately, but this may help you and be useful if the same thing happens to you today during the switch over.
How to Backup Your Facebook Content and Data
1. Go to your profile on Facebook (make sure you’re logged in)
2. Click on the “options arrow” located next to your username and the home button
4. Click on the “Download A Copy” link in the lower left corner.
7. You will need to save the file Facebook creates to your computer hard-dirve.