I hate to burst the collective bubble of shy people everywhere, but the problem of "I like him/her; there must be a way to find out if he/she likes me back!" will NOT be solved by a cool new tool or piece of technology. It will be solved by actually gaining a bit of confidence and actually asking the person in question out on a date.

This site is a cool idea. I'm sure you'll get plenty of users and some legitimate mutual crushes. But a comprehensive solution to the shy-person-A-likes-shy-person-B chicken-and-egg conundrum this is not. Shy person A or B would be much better served by learning to take a chance and just go for it.