I usually dont mess around with playlists when im on the move, I only do that sort of thing when I'm stopped at a light. IMHO, it would be a neat feature for about a week, then I would turn it off. Besides that, it would take a lot of development work to implement it. Maybe this would work well on the digital audio center though. hmmm.

Doing searches would still be impossible while on the move, you would still have to fumble around with the remote.

Sean