Apple unveiled the iPhone early this year at the Macworld Expo in San Francisco and began shipping the device in late June. Since then, developers hoping to write software for the iPhone have either followed Apple's lead and remained within the confines of its Safari development environment or turned to a slew of "unlockers" who, through various means, managed to remove the device's restrictions against Apple's own recommendations and policies. Unlocked iPhones were crippled by Apple's latest iPhone software update, however, following a press release from the company stating that unlocking an iPhone could render the device useless and voids the warranty. The new initiative, if true, would serve to open the iPhone up to serious developers and major companies like EA, which is currently said to be porting its entire iPod lineup to the iPod/iPhone platform for sale along with the classic iPod versions. Apple would still retain complete control over which developers could produce native software for the device, however, effectively splitting the difference between trying to maintain a completely closed system while eager hackers develop their own native iPhone apps and an entirely open system with no control over any developer savvy enough to compile programs for Leopard.