Apple engineer reveals where the iPhones original software came from

Ahead of the most recent legal battle between Apple and Samsung, one of Apple’s lead engineers is finally telling the tale of the first iPhone’s software. Greg Christie, a senior engineer at Apple, revealed to the Wall Street Journal that Steve Jobs gave his team an ultimatum back in February 2005:
Come up with some big ideas for the iPhone within two weeks or lose the project to another group.
Christie’s team would go on to innovate some of the more iconic features of the iPhone, like its “slide to unlock” feature and its integrated music player. It’s hard to remember this today, when we’re surrounded by touchscreen smartphones and tablets, but before the iPhone, few were thinking about touchscreen user interfaces.
He described the team working on the original iPhone’s software as “shockingly small” and noted that they “banged their head against the wall” to figure out a way to make text messages look more conversational, rather than a mere list of text. But as Christie’s team made headway and Jobs began obsessing about the project, it became clear they were making progress.
Most intriguing to hardware geeks, Christie showed the setup his team used to build the first version of iOS: A plastic touchscreen connected to an aging Mac G3 (which mimicked the first iPhone’s slow processor), which was codenamed “Wallaby.”