Facebook Timeline has arrived for brand Pages.All Pages can upgrade to Timeline today.It also have an optional 30 day period to publish the page.
Notes:
1.Only admins can see this preview now.
2.Timeline is forcibly pushed to you On March 30, 2012.
3.Cover photos are 851 pixels wide and 315 pixels tall (must be at least 399 pixels wide)
4.it removes the ability to set an app as a default landing tab.
5.Covers may not display calls to action or references to Facebook features such as “Like this Page”, purchase or pricing info such as “40% off” or “Download at our website”, or contact information such as web address,email.
One other thing i’ve noticed, if you use a PNG format image, it wont allow you to and the error message “please use an image with 399 pixles width” will keep showing, make sure you use a JPEG