As if Adobe Flash didn't have enough going against it already. Now it appears that, according to tests done by Ars Technica, having Flash installed on your laptop can reduce your battery runtime by a third. Ars Technica was running battery tests on the new 11-inch MacBook Air. With the Flash player plug-in installed, the 11-inch Air got just 4 hours of battery life. Once they deleted Flash, the Air's battery life rose to a whopping 6 hours.
Ars Technica speculates that this is another reason that Apple decided to leave Flash off MacBook Airs (instead of just to make sure that users would download the latest version). It's important to note that Ars Technica isn't saying simply having the Flash plug-in installed on the Air reduc
