The color is Palladium Silver, the leather is Novillo leather, so it's Palladium Silver Novillo leather.
edit: I could SWEAR the color's full name was Palladium Silver on the sample in the showroom but the BMW site just says Silver. The interior color thread says Paladium Silver as well.
On the plus side you can order a 2011 for March builds already so all is not lost. Just a long wait.