Oooh, I am also Here For This; seconding the request for updates! I like the way it approximates a sort of semi-structured project planning; also, it makes it REALLY easy to see how far/behind you are, based on height of your “task stack” intersecting with the YBR.
I’ve been having pretty good luck with variants of How to beemind nebulous projects like doing your taxes or fixing a neurosis ; the URLminder integration works great for google docs, and IFTTT works for spreadsheets.