Will there come a day when major apps are designed for iOS first and then just ported to Mac for those who still want that form factor? Apple has said no, but it's really starting to feel like this is what's happening. The iPad Pro offers the best of both worlds — high-performance productivity apps as well as on-the-go entertainment and games. It's the touchscreen MacBook that people long wanted. Apple even commented with the launch of its latest iPad Pro last week that it's "faster than most PC laptops," lending credence to the idea that the company is at a fork in the road and has chosen to head down the iPad path as the future of computing.
We've already seen Microsoft go in this hybrid direction with its well-reviewed Surface. Desktops will remain for their versatility and developer-centric applications, of course — we still have the Mac Pro, after all. But they'll be more niche. The iPad Pro has reached a point where it's great for many use-cases and as a booster of the product I know I'm ready for this future.