Call me old fashioned but I can't get into those progressive note taking apps because I love to write on digital yellow legal pads. There's just something more note worthy about writing on a yellow background, you know? Classic Notes is that nostalgic pad with a TON of hidden features.
Evernote, the do everything and anything note-taking app, is now available for Windows Phone 7. It syncs with all your other Evernote apps and works just as you'd expect: write notes, keep notebooks, search notes, map notes, share notes, etc. [Evernote]