I've ended up writing down first drafts of songs digitally in the last little while, but i still end up with masses of annotated paper copies, and I really want to keep writing things down actually. maybe pen writing feels more personal and confessional, and less like any other work I think? It's just I've tended to lose the random pieces of paper songs get written down on and at least in my iphone it's always with me for notes or memos. but then i find I lose the sense of change, cos when I write over a note in my phone I dont have the earliest draft anymore. and when I start adding chords to words it's clumsy trying to format them in. I'm sure other writers have much better systems than me.