Z2K
Seems that all 30 GB Microsoft Zune players bricked themselves at midnight this morning (as 12/30 became the 31st).
30GB Zunes mysteriously begin to fail at 12AM, December 31st
The failures are coming 24-hours ahead of the big '09 changeover, but that hasn't stopped Zune aficionados from dubbing this unfortunate flaw "Z2K."

In other news, my iPod is still working fine :)