Apple has rolled out major upgrades for its puny MacBook Air–the machine that Steve Jobs believes is the “future of notebooks.”

“We think all notebooks are going to be like this one day,” says Jobs. The new notebooks will be available in stores right away.

Wired.com had some hands-on time with the Air, which now comes in 13.3-inch and 11.6-inch models. Follow along for our impressions and photos of the

A prospective dad’s diet may affect his future children’s health, suggests a study of cross-generational nutritional impacts in mice.

Males were fed a high-fat diet, becoming obese and diabetic, then mated with lean, healthy females. At six weeks of age, or the mouse equivalent of puberty, their daughters became glucose-intolerant, a major step