1. the biggest risk we have identified in our business plan is being squished by a sideways-moving competitor that has decided to invade the part of the market we are attempting to take;

2. they are only going to be able to do this for a certain period of time before we hit critical mass and can defend ourselves;

3. by implication, we do not believe that they will do this without knowledge of both our vision and the fact that we are working on it right now; and

4. we believe there is a real danger that they would take this action to defend themselves if they could.

Perhaps I wasn't clear, but from our point of view, that is all the justification we need to keep things under wraps for now.