I saw this baby in SGN this month and have not been able to find much info on it. From what I can find on the interweb it is FN's take on a modern version of the BAR, it's chambered in .308, but I can't find anything on availability dates or MSRP. Looks sweet to me though, Daddy wants one.
http://www.fnhusa.com/le/products/firearms/group.asp?gid=FNG022&cid=FNC01
http://www.fnhusa.com/le/products/firearms/group.asp?gid=FNG022&cid=FNC01