I don't think there's anything suspect about Ron Conway's misspelling of 'entrepreneur'. He probably just banged out the email without doing a spell-check. Let's remember it was a private email. Had he intended to have it published he probably would have taken more care. I can't speak for Ron, of course, but I will say that I frequently write the word "entrepreneur" (i.e. in blog posts, emails, etc). I'm not sure why - maybe it's the way I touch-type - but I often miss the second 'r'. I typically don't even notice until I do a spell-check. All in all, I think it was just an innocent mistake.