Touch screen really shines with input of text data (such as addresses for the nav).

Otherwise, I'd prefer the controller style of the iDrive. Really not that hard to use. Plus the new iDrive has the google map feature where you can simply send your destination via a computer or cellphone.

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2008 X5 4.8
White w/ Black Interior w/ Bamboo Trim | Premium | Sports + 214" | Tech | Cold Weather | Rear Climate | Premium Sound | Active Vent Seats | Heads-Up | Comfort Access | 3rd Row | Aero Kit | Huper Optik Tint | Clear Reflectors