I like to use my iPad more these days, too, especially cause I'm an evernote fan. Still notes don't look as good as on paper and touch-pens are still not on par for easy writing on screens. A good integration with Evernote good get it out of niche-dom I think. For the big masses paper is still the goto tool at least for another 2 years ;)

Which app do you use?

I prefer writing but every app out there is either too buggy and slow or too bad with wrist detection. Penultimate is closest to perfect but lacks a wrist pad that does not respond to touches. Though its auto sync is unmatchable and so is text search.

I could also imagine something like those paper organizers from as it seems ages ago. something very flexible.