Perché i calendari digitali non sono più intelligenti?

Jason Snell elenca su Macworld tutti i problemi ignorati dai calendari digitali (iCal, Google Calendar, etc.) e quanto ancora si possa fare per renderli più intelligenti (e utili):

Most of the devices we carry are capable of figuring out where they’re physically located. Shouldn’t calendars take advantage of that information? Take the off-site event. If my phone knows where and when that event takes place, shouldn’t it be able to warn me when I need to leave to get there on time?