Nice! I had a very similar idea, which I made a small prototype for in a HCI course (click on the logo to get test data): http://humbit.com/longcal/ http://humb

Nice! I had a very similar idea, which I made a small prototype for in a HCI course (click on the logo to get test data): http://humbit.com/longcal/ http://humbit.com/longcal/ The vision I had was a horizontal rather than vertical timeline and discrete rather than continuous zooming (though I thought a lot about implementing continuous scrolling). Yours might be the better way to do it, at least for mobile. In any case, I think existing calendar apps fall short. There's no support for planning anything that extends out of the current month. The absolute worst is when you're in the last week of the month and you don't even see things coming up in the next few days. Someone has a birthday and you don't even see it until it's too late. And what about planning things (trips, 30 day challenges, contracts) that last weeks or months? I even think that the shorter perspective affects our ability to do long term thinking.