In Aux In For All, I whined (heavily ellipsized for your protection):

How 'bout demanding [front-mounted Auxiliary audio inputs] as standard car stereo equipment, while we're at it? … Big RCA jacks too ugly? Then just go with the same mini plug as the outs we're all using…

and today on Engadget, Ryan Block is discussing upcoming VW/iPod integration, and states:

Of course, if these guys were really smart they�d have a universal interface and just sell an iPod adapter cable, or�god forbid�have an 1/8th-inch jack input.

Always good to know I'm not completely crazed.