With inventory building, the handset slowly returning to stores, and online orders getting shipped in just two to four days, Apple has raised the limit on sales of the unlocked variant. Now, you can purchase as many as ten units from the Apple Store for one account. And the Cupertino based firm has removed the lifetime limit which means that you can buy as many unlocked Apple iPhone 5 handsets as you can afford. The online store will allow you to put 999 units ($648,351) in your cart, but only 10 can be processed at a time.
source: iPhoneinCanada, CultofMac via RedmondPie