Users of a Mac, or even a Windows-based PC, will be aware of the fact that you can flick between running apps by using the command/Alt and Tab buttons together. A quick press of these two buttons will flick to the last viewed app and back again. However, if you hold the buttons down together, a nice little view is overlaid on the screen which shows all of the running apps and allows the user to toggle between them all and choose one quickly. An iOS developer known as coffeejayyy has decided to make an iOS implementation of that feature and has called it CmdTab, available in Cydia now.
