Tech IPO's are always "overpriced." It's almost tautoligical.
Does anyone know what this company is worth? It seems to be nearly entirely potential; and nobody knows what the upside is -- it's practically incalculable; but so are the contingencies.
How long does the average user sit in front of a Facebook page? How many man hours are spent viewing facebook pages each day globally? What is buying time in front of that captive audience worth? Somebody run the numbers. I'm sure it's huge.
The problem is that with a half billion shares out, it's no slam-dunk bargain.