The new iPhone was announced today and with it, a new dock connector. I know the Fall 2011-present X5 has a USB-only option for audio playback through iDrive, but my early 2010 X5 relies on a dumb BMW USB+aux cable that I've found to be very finicky. It doesn't work if you add an extension cable and I've had it not work whenever I've tried to connect various adapters inline. I suspect the iPhone 5 with the 30-pin connector won't work, especially since
the product page even says "iPod audio out not supported" in the small print.
Guess it's time to wait for the new 2014 X5 to get announced properly?