Which pretty much tells me that there won't be any universal term. What do we call the years from 1900 to 1909? Exactly.
It's funny we were all wondering this at the end of the 90's. Now this decade is almost over and it still has no name. We usually use the "2000s" which works now, but how will it be distinguished in the future?
I've been thinking of them as the aughts since they started. In 20 or so years, it will be very old-timey when I talk about it to my grand-kids.
It will be called the greatest decade ever b/c I found a pair of amazing pants on sale at Saks the other day.