I grew up taking copious handwritten notes and making pencil-to-pen sketches so I get it but sometimes markdown's just as fast for list making and edits are no-mess. The closest I've found to the two is the Boogie Board but IMHO as far as being its best self -- some temp/limited storage, levels of undo, maaaaaybe cut-n-paste? -- it's still about a microcontroller hack or addition away from awesomeness. At any rate, perhaps the headline could be dialed back to "Just use f-ing paper (for now), man"?