Hi. Apologize for the late reply and kudos for following up on the feedback. I am not denying in any way that you have solved a problem. My only point was that the '1 billion' number is quite misleading, because I will dispute you on the "unleashing people's imagination" part. The problem I see in your argument is that you are comparing yourself with a local store that sells readymade shirts. You need to compare yourself with a local tailor instead. I am not in US, so I don't know what the market there is, but if I were to walk in any store in my country I still have more than 200 different patterns to choose from (http://raymondindia.com). Also, I am not sure if getting a tailor offline is expensive or not in US. Also, one of the great factors I see is convenience. You are totally selling me your idea when you say "in a few clicks" and not when you say "unleash your imagination". Your pricing also seems extremely reasonable and that is another selling point for me.

Everything aside, I really think your app is great and I would definitely give it a try when I visit US next time (I hope you deliver it in 1-2 weeks, because that is generally how long my trips are) :)