Stuart - you are correct. I have tried twitter on four separate occasions and each time I quit because it was too complicated and confusing.
It is very risky to own a stock while waiting to see if someone else is capable of making money.
Why would someone pay good money to buy a company that can't make money?
the pre-release is not the reason for the drop. If it was, the stock would not be down another 5% today. These type companies usually get pummeled when they reduce guidance. If you owned the stock then you bought the volatility that accompanies it!