Creative Labs has sued Apple Computer alleging that the iPod violates a patent granted for the Creative Zen player. Patent number 6,928,433 describes itself as "a method, performed by software executing on the processor of a portable music playback device, that automatically files tracks according to hierarchical structure of categories to organize tracks in a logical order. A user interface is utilized to change the hierarchy, view track names, and select tracks for playback or other operations." To iPod fans, that is tantamount to patenting the human body. You've got two arms and two legs? Busted! The patent was filed on January 5, 2001 but not granted until August 9, 2005. The first-generation iPod made its debut on October 23, 2001, a few months after the filing. "We will pursue all manufacturers that use the same navigation system," vows Creative's CEO Sim Wong Hoo.

Postscript: Shortly afterward Apple filed a countersuit alleging that Creative violated four of Apple's patents, according to Bloomberg News, though which patents were not specified.