Smart alarm clock?

Seth Godin made a brilliant post about alarm clocks recently:

"For twenty cents or so, alarm clock manufacturers can add a chip that not only knows the time (via a radio signal) but knows what day it is too. Which means that they can add a switch that says "weekends." Which means that the 98% of the population that doesn't want to wake up on the same time on weekends as they do on weekdays will be happier (and better rested.)

So why doesn't every alarm clock have this feature? Because most people in that business are busy doing their jobs (distribution, promotion, pricing, etc.), not busy making products that people actually want to buy--and talk about."

So why are alarm clocks stuck in a 10-20 year-old technology gap? Why don't they connect to your PC with a USB cable, and allow you to program them? If my GPS can receive MSN Direct (an FM radio-based digital service that includes weather, horoscopes, stocks, news, sports results and calendar notifications), why can't my alarm clock?

This is definitely a rift.

Here is someone who did something similar as a hack.