The iPhone doesn't support app launchers in the same way as OS X, but that doesn't mean app developers haven't come up with clever workarounds. Case in point, our pick for the best launcher, Launch Center Pro lets you launch not only apps, but specific actions within apps.
Tagged With app launchers
Android: Similar to Quad Drawer, AppDialer is a launcher for Android that uses the old-school T9 keypad for input. The focus here is on speed and ease, as AppDialer thinks a T9 keyboard is faster for entry than a standard QWERTY -- and the search results update in real time as well.
Windows 7: When you sit down at your computer in the morning, you probably have a handful of applications you open at once to start your day. Windows 7 App Launcher (7APL) can open select applications or groups of applications with a single click, or you can bind application groups to key commands and open all of your "work apps" or "gaming apps" with a keystroke.
Mac OS X: Tab Launcher is an app launcher and organiser that uses manila folder-style coloured tabs as app drawers, each meant to be for a different category of apps (like System, Games or Writing). Using Tab Launcher allows you to keep little, if anything at all, in the actual OS X Dock, leaving it free to only show which apps are currently open.
Mac OS X only: Universal application launcher and then some Quicksilver has a pretty shaky future, so we were both surprised and thrilled to find a new release of Quicksilver boasting, among other things, improved performance.