General questions about mp3 players and their functionality (such as iPod and sometimes iPod Touch) I would not classify as acceptable material.

Questions about "smartphones" and other smart devices (such as iPhone and sometimes iPod Touch) I would classify as acceptable material.

This is a pretty broad generalization, but I think it matters a lot on where you draw the line on what classifies as a computer and what does not. So far through the beta we have drawn the line traditionally towards the PC/Mac definition of computer and related hardware, while also including smart phones (what many would now almost call mini computers because of all the functionality like web browsing and applications).

If it is me, I will let most iPhone questions slide (except for ones asking about games), and I would probably let most iPod Touch questions slide as well since it is basically just the iPhone without the phone, so there isn't much difference there in functionality.

A question about an iPod shuffle I would generally not accept on face value unless it was asking something that involved a computer. For example: "My iPod shuffle has stopped being recognized automatically by Windows. What do I do?"