Individual twits display on a Google map. Not only can you learn the most trivial details of what people are doing, but also where they are doing it!
As posts appear and disappear, the map repositions. Most fun is seeing the focus shift back and forth from one side of the globe to the other - from somebody in Singapore describing what they ate for breakfast to somebody in Hoboken describing what they ate for dinner.
I plan on getting up early tomorrow so I can see the 'breakfast horizon' pass over the globe - from miso soup in Japan, through the UK's black pudding, ending up with a West Coast fruit cup and Espresso. Now that's a global community.