Still no official statement, but this comment on a forum.

Originally Posted By: Dave McLauchlan, Senior Business Development Manager for Zune

ALL consumer electronics products have a lifespan, and the Zune HD is 18mo old. We were completely frank about this year's Zune hardware being the WP7 phones, and we continue to both sell and fully support the Zune HD line of products. And as I've promised – we continue to bring new apps and games to the platform. More of those are in the works, I promise you.


Translated to English: The Zune hardware is dead.
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Bruno
Twisted Melon : Fine Mac OS Software