VanVillain, in my opinion, i don't think the Empire Club appearance is what has driven the stock price up most recently but rather the anticipation of news which might be released prior to the doctor taking the stand (i.e. MS8 or the potential outting of a PDA). i still expect for at lelast MS8 to be achieved prior to his speech on Monday. Might be wrong but given the language uttered in prior releases by the Company this would make sense.
As for price volatility, this to me is only normal after such a massive run up in prior trading days. In my opinion, adding to one's position today if things play out the way I suspect is likely a good idea.
Cheers,
Sandman