Errol Morris, the same filmmaker who made Apple's "switch" ads (from PC to Mac) is the same person behind Moveon.org's "switch" ads portraying Americans who regret having voted for George W. Bush.

"There's a principle of advertising that if you want to talk to a certain group, it's best to pick someone from that group," said Morris , whose documentary on former Secretary of Defense Robert McNamara, The Fog of War , won a 2003 Oscar. "If you want to talk to Republicans on the fence, then it's best to talk to Republicans who are on the fence. These are real people who are expressing themselves in their own words."

Read about it here. One of the famous switchers, Ellen Feiss, is here, whose Dad's PC ate her homework.