I'm currently building an imitation of Apple's keyboard in Swift (https://github.com/archagon/tasty-imitation-keyboard https://github.com/archagon/tasty-imitati

I'm currently building an imitation of Apple's keyboard in Swift (https://github.com/archagon/tasty-imitation-keyboard https://github.com/archagon/tasty-imitation-keyboard). Learning process has been pretty easy so far: a few hours with the documentation and the rest picked up along the way. Playground was great for getting up to speed. It's pretty fun to be on the vanguard of a new, evolving language and have it actually be capable of production use. Also very frustrating: there are a number of design decisions that drive me crazy (lack of auto casting between CGFloat/Float/Double/Int... usually), and the latest Xcode and compiler betas have a bunch of bizarre non-deterministic bugs, performance issues, and error messages that have nothing to do with my code and require workarounds. I'm a little too lazy to file Radar bugs for them — Apple is not paying me to write bug reports, and they'll surely get discovered by others — but I'm really looking forward to writing a brief postmortem when I'm done. (PS the code is super messy right now. I'm in the "hack away" phase, cleanup will come later.)