This is not available in the UK yet, though it should be coming soon. However you can enable it if you feel comfortable with the fact that you can’t go back to the old version. Instructions for doing so can be found here:
http://techcrunch.com/2011/09/22/how-to-enable-facebook-timeline/
I have had this up and running for a couple of weeks now and I really like it. Though I can’t seem to find the ‘View Profile As ’ feature which was made more prominent in Facebook’s recent profile update. I think that might not yet be in there as it is still pre-release however that might just be me giving in to my laziness.
I am really looking forward to this layout coming to brand pages, that will open things up quite a bit as you can see here: