That's a good idea.

There's a risk of creating hype among people who don't know enough to be able to make a decision, but who do have power to make that decision.

(http://dilbert.com/strips/comic/1995-11-17/)

I can envision a great Samsung-ish commercial about waiting in line to get the new hash - one of you creative types could have fun with that spoof (of a spoof)

And to retire SHA-1, they can put it on the back of a 747 to fly it past major cities and national landmarks on a farewell tour.