With iPhone 4 launching on June 24th, consumers are still trying to figure out what stores will be carrying the device on launch day. Wal-Mart can now be added to the list of stores carrying iPhone 4 on June 24th. The store will not be offering the same pre-order offer than can be had at AT&T and Apple stores. It is still unclear what time the device will be sold at Wal-Mart stores, as many are open 24 hours a day.