Two more companies are set to join the ranks supplying memory for the iPhone 3GS, industry sources claim. Hynix's 41nm NAND flash is said to have recently passed 3GS validation, paving the way for future deliveries. Details of a Micron agreement have also allegedly emerged, pointing to volume shipments for Apple beginning in August. Unlike Hynix, Micron has 34nm chips ready to go, the sources sa