Drop one of the tiny iPods: The distinction between the iPod nano and shuffle gets fuzzier every day.   The shuffle has a clip but no screen. It's handy for joggers, gym rats, skydivers, and other sports enthusiasts. The nano has a multi-touch screen--a really small one, in fact. Is the MP3 market big enough for both players? Only Apple knows for sure, but I suspect that one of these models is on the way out.

As for the iPod touch? It's a keeper. With its iPhone-like capabilities, this multi-talented media player is popular with the younger crowd. And more importantly for Apple, the iPod touch is a .

Long term, the iPod's days are numbered. But don't write its obituary just yet.

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