Still recovering from iPhone 5 mania? Well buckle up because Apple’s (AAPL) next-generation smartphone could be coming sooner than you think. The Next Web has obtained some Apple developer logs showing that “Apple has been testing hardware relating to a new ‘iPhone6,1’ identifier, powered by a device running iOS 7, which is expected to be released by Apple in the middle part of this year.” Unnamed sources have also told The Next Web that “Apple began working on the new version of iOS 7 towards the end of 2012 and is soon to finalize the features that will be included in its first public release.” Last month we started hearing rumblings that Apple wanted to get its next-generation iPhone ready for launch at WWDC in June, so it’s not at all surprising that Apple engineers are already working on developing hardware and software for the company’s newest device.