I think they're going the other route. Making the iPod ubiquitous. People won't think of anything else when they think of file-based digital audio, so if car manufacturers want to add value to their configurations, an iPod dock that's compatible only with iPod is as "universal" as they ever need get.

I still think iPod integration will continue to be a premium or "special edition" type offering for some time to come. Adoption rates for mainstream technology has grown tremendously in the past 10-15 years, so what I'm abut to say isn't a linear comparison, but think of how long it took car manufacturers to offer CD players as standard. The CD came to market in 1982.

Bruno