Yeah, It is brilliant for that. I got a bookbook cover with mine and now it looks like an old magic book containing all the knowledge in the world. Childhood fantasy come true in a way.

Another great note app is evernote, allthough I went a bit crazy with note apps, I now have so many that i hardly know which I used.

But those three I think will end up as my favorites.

Evernote for taking notes in lectures and making plans and such. Knotes for creative writing (neat ways to the net and for exporting) and Clibe for Diary kind of stuff, because you can also draw in it properly.