snowkatt: i fail
to see what that has got to do with the interface of an mp3 player
tactile controls are easier to use "blind" ie with out looking at a touch screen
but touchscreen controls still work perfectly fine for an mp3 player
Directly? Nothing. It's indicative of the error-prone imprecise nature of touch screens due to the lack of tactile feel.
More directly, most touch screen devices lock when the backlight goes off. This means I typically need to unlock it (or use some special combo) before I can interact with it; change the song from one I hate, pause because someone that I know just walked up to me, or any other interruption. These issues don't exist on non-touch-based devices because the ability to interact is always present. These issues are amplified (no pun intended) if you use noise-cancelling headphones, which take more effort to remove once fitted into your ear.
I personally own both an iPhone and 2 iPods (80GB and 160GB, both filled). The iPhone has gotten me into trouble when I've used it because of the need to act or respond immediately and not dick with the device to stop playback. To the point where it's almost caused me to drop the phone in some cases (an instant screen-breaker at *my* expense). If these points never ever represent an issue; people don't get irritated or any tangential problems arise from the lack of immediate response with you taking 3-7 seconds to respond because you have to stop the device from playing, you may be fine with a touch screen. Personally, I think they're for the birds.
Especially for audio.
With the iPods, these things just don't happen *and* the device is great for audio playback *AND* I can take a formidable library of audio with me that puts the phone to shame. Not to mention, I'm not sharing the available space between apps *and* audio. For audio playback, there's
simply no comparison. It's like comparing a RV to a Ferrari or a Swiss Army knife to an Applegate-Fairbairn.