Production of iphones looks to have been halved due to retina display shortages, so my guess is they decided to not produce anymore white iphones until the shortage ends, which looks to be around september.At the same time they increase hype and demand by making people wait and want the white even more.This could also be the reason why the rumors about limited supply of white iphone 4s are out there, they produced a small amount, not expecting the popularity it would immediatly gain then decided to halt white production when retina displays becamse scarce while already having produced a small amount.Question is will apple hold these back for the launch and keep them to launch with the later batches at the end of summer?
http://news.cnet.com/8301-13924_3-20008149-64.html
http://news.cnet.com/8301-13924_3-20008149-64.html