This article listed an incorrect figure for Logitech's workforce. The company employs more than 9,000 workers.
This story had an incorrect total for U.S. searches in November. The total was 12.3 billion.
A press release on which this story was partially based misidentified which NASA mission the technology will be used for. The energy-harvesting sensors are part of research for forthcoming Mars Scout Missions.
An earlier version of this story mischaracterized the state of the U.S. iPhone 3G's SIM card. It can be removed, but AT&T does not provide an unlock code so that another carrier's SIM card will work on the phone.