In any case, I think the Google Twitter stream is a reference to the missing o
have a look at the 1.12.12 25.15.21.18 15 1.18.5 2.5.12.15.14.7 20.15 21.19 reference on
http://twitter.com/google
or for those of us that don't speak number->letter code, "All your O are belong to us."
So, yeah I think okny was right - the Google people were bored.