Can we just stop beating this dead horse for once please?
It's important to gauge these things as they happen, so the next time around you get to be the one saying, "I've seen this before." These stories may all turn out to be moot, and in 10 years Facebook could be a huge brand, in which case you can look back and remember how Bloomberg labelled it the worst performing IPO of the decade. Or, it could go south....
I don't think facebook's IPO has any real bearing on the industry at hand. Other recent tech IPOs like LinkedIn and Jive have varied by more than 10% in the past week.