If you think hip-hop stars like Flavor Flav started the craze of jewel-studded teeth, you'd be wrong. A new study shows that Native Americans were using sophisticated dentistry techniques to add bling to their smiles 2,500 years ago. These ancient people used notches, grooves, and semiprecious gems to beautify their teeth. According to the study, the dentistry was for purely cosmetic purposes. "They were not marks of social class," says José Concepción Jiménez, an anthropologist at Mexico's National Institute of Anthropology and History.

Technologizer writes "It came out this week that Google's Android phone OS, like the iPhone, has a kill switch that lets Android Market applications be disabled remotely. But it's a mistake to lump Google's implementation and Apple's together — the Google version is a smart, pro-consumer move that avoids all the things that make Apple's version a bad idea."