Well, I would definitely like to know where he keeps his wallet and what the password for the encryption is. 
How many coins in total does Satoshi have?
Some say he holds more than 10% of total Bitcoins (not in circulation, but in number).
Did he ever dump?
they said he hold 1-2M at best, he has the greatest amount of coin, after him there was finney
no know if he ever dump, but i suspect that maybe during the 1200 peak he dumped some, just for test how strong was the adoption