[yucca]

I've been after tagging for some time, and I like your boolean filtering idea a lot. It is the sort of thing an electronic task manager should be good for.

However, the opposing view is that multiple tags per task = chaos. You will spend too much time trying to come up with every conceivable tag for a task, and then STILL have to worry about remembering the right tag(s) to correctly filter (focus) your list of NAs.

I think most of us are disciplined enough to limit our tagging, and I'm sure at least some of us are clever enough to not have tag recollection problems. We'll have to wait and see what v1.5 or v2 hold I guess . . .