I think you could come up with a list of features and line them up and say that the iPad is basically reinventing the Mac. And it is, to some extent. I don't t

I think you could come up with a list of features and line them up and say that the iPad is basically reinventing the Mac. And it is, to some extent. I don't think that's a bad thing to happen right now. All I can say with absolute certainty is that it feels different to work and code on my iPad and iPhone than it does on my Mac. You outline very specific features that have since come (or will come) to iPad. But there are many less tangible "features" that really influence how it feels to use these computing devices. For example, I edit all my photos on my phone. I never thought I'd do that a decade ago, but I do. The screen is better there. The photos are already there. The editing tools are great. The phone is faster. They get shared easier from there. There's now an entirely different emotional context around editing photos. Another example is that it's far easier to turn on my phone or iPad. Opening my laptop is a heavy operation, often I'm sitting at my desk. It's work time. But just two days ago I was at the playground with my kids, I had some time to myself so I edited the very blog post we're commenting on, on my phone. I even edited some of the videos there. That's another one that I just keep doing on the phone. Editing videos. I keep using Apple's Clips app instead of Final Cut Pro because it's just so instant, and fun, and light-weight. And no one notices or cares about what the resulting video was made in if it's good. So by using git, and Codea, and building shaders on these devices we start to find out how we can differently fit more creative tasks into our lives. The Mac may never be replaced. But I might find that prototyping a game idea happens more often on my iPad or iPhone, simply because it's there when my laptop is not there. If that means we end up reinventing some of the Mac UI paradigms for iOS, so what? The physical devices themselves are so much more pervasive and instant that they are creating new use cases just because of how we hold them and feel about holding them.