Oh, the sad state of portable audio devices.  Why is it so difficult to listen to music from my mp3-capable Treo while in my car?  Sure, I can use an FM transmitter, but they have shoddy reception and are prone to interference.  (Perhaps there'd be less interference if the transmitter was closer to the car's antenna, but my 2004 Camry is mysteriously missing a protruding metal antenna.  I'm sure it has one; I just don't know where it is.)  Sure, I can use a tape player adapter (yes, my car has a tape player), but the audio quality and subsequent noise of spinning tape wheels turns me off to the idea altogether.  Why doesn't my car audio system have an audio input jack?  Why wouldn't that be a standard feature?  Why are there wires involved?  Haven't we reached a point in our technological revolution where we can do everything without wires?  Hasn't Bluetooth use become so widespread and simple that it permeates all areas of our lives?  Why does my Treo's built-in music player (Windows Media Player Mobile) not have a function that remembers the place in the song where I left off?  Who wouldn't want that feature by default?  Why does my Treo use a non-standard audio output jack, requiring me to buy an adapter?