The Wall Street Journal has a story about the birth of the iPhone (which I am still a little startled to realize is only seven years old … I think my memory is merging iPhones and iPods into a sense of the presence of a single iThing). In an accompanying blog post, they shared this photo taken by Apple engineers, showing the system that was used to test out prototypes of iPhone software before its release. According to the blog post, the system "tethered a plastic touch-screen device – code-named "Wallaby" – to an outdated Mac to simulate the slower speeds of a phone hardware."
