Here's a pretty detailed article on it from AutoWeek:
http://www.autoweek.com/cat_content...._code=04158216
I haven't read through it enough to see if iDrive is standard or not, here's hoping it's optional. There's also a photo gallery in the article.
Just a random note: This "Active Front Steering" seems very similar to the the S2000 typeV's VGS system although probably with less of the formula-car feel to it.
So the claim that BMW has the world's first system is in fact false--Honda did it first.