My personal opinion is that when wall street truly gets it, the bitcoin speculative bubble will make the internet bubble look tiny in comparison.
True, but they won't be happy the 1-block-per-ten-minute throttle will effectively kill any attempt to build a High Frequency Trading system. I on the other hand, am ecstatic about that fact.
Sorry to disappoint you, but HFT will definitely be possible on the black market exchanges. They will just use bitcoin to get the money in and out.