I wouldn't mind answering those questions, but my X5M is being prepared for delivery and I should have it within 5 days.

Looking at various X5 pictures, I believe these are the answers:
1) Yes
2) The I-drive controller is pushed forward, but there is a slot behind it
3) Yes
4) Don't know
5) I don't know

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2011 ///X5 M (On Order)

2009 X5 4.8 M Sport Space Gray/Black Fully Loaded

2007 GMC Yukon XL Denali Loaded and Customised