I'd be curious to see how these results change with pen-driven technology, such as the Galaxy Note tablets, or the Livescribe pens (that simultaneously write to paper, create digital copies stored in Evernote, and also record an audio version of the lecture/meeting).

I've always felt that when I need to think through concepts, walking away from the computer & working with pen & paper was a more effective way to do it, at least for myself.