Not to sound pretentious, but if you read through the whole thread you'll see some of the correspondence or a summary of anything we've received from them. For the most part, they've tried to keep us informed of what's going on and have answer a good number of our e-mails promptly and personally.
I'm sorry to hear that you have not received a response. I'm sure if I were in your situation I would be just as mad. If you feel this is a waste of your time and money then might I suggest getting a refund? They are more than willing to return your money to you as they have with others who were not happy with the situation.
Me? I'm going to wait it out. I have a simple sleeve right now that's doing the job and I'm waiting on this and a Fabrix Deluxe Case. Yes, it irks me that both companies are slow on producing and shipping but there has been quite the flux in demand for these. Fabrix was already setup to do mass production so I'm expecting that to show up by the end of the week (hopefully). The AirMail group, however, just didn't realize the amount of demand a product like this would incur. Call it growing pains, if you will. Just think of this as a GIANT growth spurt right at beginning of a new venture.