Wait, so the "beta" stuff isn't even up yet? So it really is just an email collector?
Not to be harsh, but come back and post something when there is actually a site up an running. At the very least you need to provide a much better description of what you are planning to offer and why I (I, being a general user) am interested.
I wish to tell you more about this but all I can say at this moment is that the new iPhone 4G/HD and an Android App is also on its way!
The Chitabox Team