AP - Motion controls and social gaming were the hot topics at this week's Game Developers Conference, the annual convention of game designers, programmers and executives.

AP - Apple Inc. is giving its chief operating officer a $5 million bonus for "outstanding performance" running the company while CEO Steve Jobs was on medical leave.

AP - A federal court Friday upheld regulations that require cable TV companies to make sports programming and other channels they own available on equal terms to rival TV providers such as satellite companies.

The best of the rest from the Physics arXiv this week:

Observation of an Antimatter Hypernucleus

Lithium sulfur promises a longer charge, and safer operation, compared to standard lithium batteries.

Researchers at Stanford University have developed an electrode that can be used to make more energy-dense lithium-sulfur batteries. If issues surrounding life-cycle deterioration can be addressed, the battery could resolve performance and safety issues limiting the spread of longer-lasting batteries in hybrid and electric vehicles.

Molecules that make blood vessels more permeable might boost chemotherapeutics.

Getting chemotherapy agents into solid tumors can be a challenge because high fluid pressure inside tumors makes it difficult for drugs to leave the bloodstream and attack their targets. But now researchers at the University of California, San Francisco Medical Center have discovered a new way to regulate the leakiness of blood vessels: blocking certain molecules surrounding blood vessels in mice can temporarily tweak their leakiness, enhancing flow of drugs to tumors. If scientists can mimic this effect in humans, the compounds could be given along with chemotherapy drugs or molecular imaging reagents to more effectively deliver them into tumor tissues.

Verayo is harnessing unique manufacturing flaws to make RFID tags that are impossible to copy.

A company that relies on atomic-level flaws in computer chips to tell one chip from another says that its circuits could help fight counterfeiting in anything from passports to handbags. Verayo, an MIT spinoff based in San Jose, CA, says the ID tags should be more secure and relatively cheap to make.