iDrive 4.0 CIC in 2010 X5

[eyeguy]

Hey all - I posted this on Bimmerfest too. Everyone's excited about 2010 X5 which is supposed to have the new iDrive. TWO questions:

1. Do we know for a fact the new system will be in ALL 2010 X5's, including the first run off the line in Sept/Oct? I've been looking for solid confirmation that this is a fact (hopefully something better than "my CA/SA said..."). Any info appreciated -

2. Has anyone tried both the current edition and the new edition? Hard drive/ONE optical device benefits aside, is it really difficult to use the current system? Is the new one really better than sliced bread, etc?

Thanks-