Amazon's plan to launch its tablets in September could involve a very aggressive opening month, part suppliers said Wednesday night. HannStar, J Touch, and Wintek are expected to supply touchscreen panels for the Android slates with a goal of shipping 1.5 million to two million just for that month alone. Earlier Digitimes sources had already penned in estimates of four million for 2011, hinting that Amazon is counting on a large-scale launch but slowing down quickly later on.