Apple Computer's chief software technology officer Avadis Tevanian will step down at the end of the month. Tevanian was responsible for the teams that gave us the next-generation Mac OS X operating system, and he ushered in the era of the iMac and the iPod. Tevanian, who took up his position at Apple in 1997, will leave Apple to pursue other interests.

"While he was their leader, he had an incredible team around him and has seemed to be grooming them for the time when he would step down. Although it is a loss, I think he has left Apple very capable of carrying their software vision forward and they should not really miss a beat," said Tim Bajarin, an analyst at Creative Strategies.