I use my iPad for content creation every day and it's fantastic.

Editorial is perfect for writing and blogging.

Procreate is awesome for painting(of course it's not PS+Wacom, but it is surprisingly good).

I can use Recorder to record audio for my videos.

And Pinnacle Studio is a surprisingly awesome for editing videos.

Maybe they don't exactly compete with pro tools available for mac and pc, but they are amazing. And Pinnacle/Procreate totally crush everything available on Linux(for my purposes).