I'd love to see a player that could display through the (touch ) screen of my Prius, and I think that after the current period of gratuitous incompatibilities (mainly due to the rate of change in car audio technology), we'll see some interconnect standards for audio storage and playback, so devices from different manufacturers can speak the same protocol (i.e. cassette, AM, FM/RDS, DAB, XM, CD/MD changers, HD MP3 players, and NYMHFT*), with provision for 3rd-party nav systems and the like to 'borrow' (bits of) the display and input systems.

(Hmm, I really ought to learn - when I have time after all the other calls on my Copious Free Time - how to reduce my outpourings substantially, or else how to divide them into shorter, sharper sentences to ease the load on the reader who, even now, is desperately clinging on to the opening context in case I should return to it once more - but, alas, I fear I shall not.)

* Next year's must-have flash toy