Micro USB can't do everything the new connector can e.g. digital out.

  The iPhone 5 is not all-new, despite the protestations in the launch video.
  It looks like a mid-season 3-series with a new spoiler stuck on it and a stretched wheelbase.
  What people wanted (especially after the 4s), was a new 911.

You must be joking! The 3 series has undergone much more radical changes than a 911! And the iPhone 5 is closer to the design philosophy of the 911, which traces its history back 50 years! Hell, I can even guess how the next generation is going to look.