I don't disagree with the spirit of doing user research before building things, which is sort of the rage now, but I really think that if people are reading thi

I don't disagree with the spirit of doing user research before building things, which is sort of the rage now, but I really think that if people are reading this they should hear the counterpoint loud and clear: Do not mislead your users. Really, I can't imagine it makes such a difference to have coming soon. I doubt -- though I don't know for sure -- that simply telling people you already have the product is going to give you a company changing amount of information. In any case we should have benchmarks that will help. (Example: Perhaps the "coming soon" tag costs you 50% of your signups, so just double the amount you receive as an estimate, and then remove the tag after you build it).