There’s been a lot of buzz about Google Calendar since it’s recent release, and for good reason. It integrates with Gmail, boasts robust nlp (natural language processing), and will make you happier and file your taxes for you (all Google products will, right!?). I’m a Googlehead as much as the next guy, and probably a whole lot more.
Still, I came across Spongecell today, and I have to admit that it seems pretty slick. It’s draggable, textable, nlp-powerful free software. I don’t know if it’ll do your taxes for you, but they have a live demo version up, so you can always go see for yourself.