Like last year and the year before that, this year, we have Googlers responding to questions in the help forums.
Googler, JohnMu, like last year, came in and responded to at least one thread, likely more. In a Google Webmaster Help thread John tried to help a webmaster deal with temporary down time. He gave the following advice:
Instead of returning a default website when an error occurs, it's much better to let us know that it's a temporary issue (result code 503). That way, we'll know not to look at the content and to try again later.
In addition, Matt Cutts also joined in on a Merry Xmas thread, late last night saying, "luzie, thanks for the welcome. :)"
There were plenty of other Googlers, and likely other search reps at other companies working or participating in company events, on Christmas. I just wanted to document a few.