I use my i-drive for just about everything too (on my 4.8i) but it does get annoying without a 'back' button. Click on the wrong item and you pretty much have to hit the menu button and start over!

The phone feature through i-drive is too cumbersome; having to scroll and click on each digit to call a number. I do love the voice dialing and use it everyday! Simply say 'dial number' and you can say the whole 10 digit number without pausing and it gets it right everytime! In fact I don't think it's ever got it wrong.

Other voice commands I commonly use are 'sat radio' or 'aux audio' for the ipod without having to hit the mode button several times. The lag time is also annoying. If you hit 'mode' for radio, you have to wait for it to kick in or you might be on to the next mode such as CD...But I guess you don't have that problem with the next gen i-drive!

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2008 X5 4.8i - Jet Black / Black Nevada Leather / Specs: Every possible factory option