The Mac App Store is staying the same, right?
Nope. Even though it just arrived in January, the Mac App Store should undergo a few modest changes when Lion arrives. Like their iOS counterparts, Mac app makers will be able to add in-app purchases and push notifications. Apple is also requiring developers to add sandboxing—which prevents applications from interfering with other bits of information on your system—for heightened security. Updating your software should go faster, too. Lion will favor “delta” updates for the apps you own, meaning the Mac App Store will now download just the changes in a code for each software update rather than the entire application.
