Studies like The Pub and the People (1943) and Weeping in the Cinema in 1950 (1995) are just two of the many studies based on Mass-Observation data.

FORBES: Magazine Article

This is based on data from PortalPlayer as well as the simple observation that Apple unveiled its then new iPod photo around the same time last year, and that they'll want to cash in on the same holiday season buzz they did then.

ENGADGET: Color iPod minis by October?