I was also going to point out that it was an international standard, and one that (IMHO) should be more widely used, not only because it avoids the US-vs-most-other-places month/day ordering confusion, but also because when you consistently use dates in this format, they sort correctly when you have a list of them! Not that it's relevant in this case, but consider the situation where you have files named things like:

Backups-Apr2012.zip
Backups-Feb2012.zip
Backups-Jan2012.zip
Backups-Mar2012.zip

(Sorted alphabetically, as you can see.)

I always prefer to name things eg.

Backups-2012-01-01.zip
Backups-2012-02-01.zip
Backups-2012-03-01.zip
Backups-2012-04-01.zip

As I said, this is not relevant to the current discussion, apart from being a general argument in favour of ISO-8601 and its variants.

Then again, give me half a chance and I'll lecture you enthusiastically about why A-series paper (A4 etc) is the Best Thing Ever because of SCIENCE.