High tech @ NASA

Bottom line: If Atlantis still is on the ground Dec. 14, its launch would be delayed until around Jan. 7. NASA would avoid flying during the New Year's holiday because the shuttle's computers are not designed to handle the year-end rollover.

Source: Florida Today

I've been debating trying to make it down to Florida to catch a shuttle launch before they're no longer around. It's still a possibility, although there's not much time left: the last flight is scheduled for May 31, 2010