AppSwipe! is a task switcher and application manager for the Android platform. It is designed to have a similar look and feel as Alt+Tab or Command+Tab keyboard shortcuts on other popular operating systems, while providing a lot more functionality.
AppSwipe! lets you quickly switch between running applications, recently launched applications, running services and processes, and user-defined favorites with a single touch. You can also quickly free up memory, uninstall, and close running applications.