Honestly speaking, I think you might have a bit of a chicken and egg problem with getting started.<p>I like the idea of your app and it's something I could use, but since you're asking your customers to hard code stuff into their application at potentially experience-critical moments, any kind of failure on your part would be pretty disastrous.<p>This service is something I would use when it matures a little, it's not something I would hook my app into whilst you're just starting out.  Venture backing or an established partner might help me convert sooner.<p>My 2c.