I just got my first sad tab in Google Chrome. Surprisingly it was in Gmail and it cascaded to Google reader. All other tabs were fine. You can reload the sad tab which is pretty cool if you haven’t just lost a long email. Still it’s better than losing all your tabs and you are always just a reload away from getting back what you were looking at.
Aw, Snap! is the message. This is just so Google. No cryptic error message, just the reality of the situation.