First of all, you should say what this app. is about.  What is it about?  There is nothing on your Facebook that says it.<p>Secondly, why would someone send you an email personally for a test? Why not launch the beta and have people test it instead of asking them to send you an email for the invite?<p>Thirdly, who did you build this app for?  Who are your users? I hope you did your homework before building the app.  Just my 2cents..