To be fair, I seem to recall Zune's interface being a bit laggy up to (I think) v1.3. I don't know how Apple is with firmware updates, since I've never owned an iPod. If they do update firmware, it should be fixed soon. If they don't, that's horrible.
Sounds like a case of rushing to market. It's sad that this is the norm for business now. However, at least now it's possible to fix it without returning it to the manufacturer.

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