[bitserf]

It will be interesting to see if Swift Playgrounds on iPad changes the landscape here.

Simple intro courses, but it's got real Swift compiler + runtime, and you can call straight into all the native APIs if you jump out of the guided tour.

[thecosas]

With the recent Game Center APIs for live streaming, you can apparently do live streaming of Swift Playgrounds on services like Twitch as well.

Might be nothing, but opens up a lot of possibilities for people just getting started.