Launchpad in Mac OS Lion shares a key behavior with its iOS counterpart: deleting an app from the launcher also uninstalls it from the computer, as long as the app was purchased from the Mac App Store. Of course, it's quick and easy to redownload the MAS apps if they're needed.
While this insta-delete, complete with jiggling icons, may be counterintuitive for longtime Mac users, it makes perfect sense to iPhone or iPad users where there's a one-to-one mapping between apps on the launcher screen and apps installed on the device. On other mobile
