Again i want to stress that you did great work. However as to the concept, your what people call a "me too" company. Alot of other companies doing the same thing at the same time. Yes you are a little bit different ,but not enough that most people will pick over .....google or whoever. If you can figure a way to interact with other service and provide features that they not have that might work.

Did you work on this alone or with a team?