Exactly. Apple learned a lot working on resource-constrained mobile platforms, and they brought a lot of that knowledge into OSX (one of the benefits of not hav

Exactly. Apple learned a lot working on resource-constrained mobile platforms, and they brought a lot of that knowledge into OSX (one of the benefits of not having separate divisions?). Back in Lion, the Mac would began suspending/killing processes in the background: http://arstechnica.com/apple/2011/07/mac-os-x-10-7/8/#process-model http://arstechnica.com/apple/2011/07/mac-os-x-10-7/8/#proces... Devs and ubergeeks got upset ("Steve Jobs is taking away control of our desktop too!"), but obviously we are seeing the benefits with battery life. And Mavericks goes much further: http://arstechnica.com/apple/2013/06/how-os-x-mavericks-works-its-power-saving-magic/ http://arstechnica.com/apple/2013/06/how-os-x-mavericks-work... Update: If there's any doubt how seriously Apple takes battery life, note that their WWDC 2013 talk/video on "Maximizing Battery Life on OS X" was given by Bud Tribble.