[ron_jeremy]

Intresting.
As they have gotten half of theyr feet into Apple, with the "siri"allready, i guess it's a natural progress.
As for how it will work: I think IOS will run behind, but BMW provides the "skin", like "touchwiz" is for Samsung using Android code upon. Or HTC with "sense"
The look and feel will be guidelined by Apple, but BMW choose how it will work, and how many features it will provide.
They have started with Apps, and naturally, beeing a more polished product, as BMW also is, they should look to Apple, not to WP or Google imo.
As of lately, Apple makes the best SW in the business imo, theyr stable, and provide maps and the works.
I think smaller brands will benefit more, but BMW should be careful not no join in, because of the knowledge that is within Apple, and the echosystem they can provide it's customers. Beisdes Apple and BMW is on paper a great combination of design and real life usage imo.