I can get behind all of this, with the exception being that I *do* care about the past. I, too, want a calendaring app to focus on the here and now, and taper the level of detail of future events by time-proximity, it should still retain the ability to easily jump back a [day|week|month]. It shouldn’t need to be said, but I wanted to point it out none-the-less.
I have to agree with Gruber, this is such a great app. It really should set the bar for viewing calendar data. The “everything is tap-able” approach works so well that it is intuitive and effortless to move between days/weeks/months. The developers behind Apple’s calendar app should be taking notice. Their app feels broken and half hearted next to this $0.99 gem.