WkTASK is designed to improve the accessibility and functionality of your mobile phone. It allows you to see all programs that are running in the upper task bar, similar to the way you do on a Windows desktop, change between windows and stop programs individually or simultaneously, especially useful if one or all are causing you problems.
You can also easily alter the volume, brightness of the display, change the screen between landscape and portrait and even restart and shutdown the network connection.
A word of advice - the X button has a number of uses ranging from closing everything down to switching between tasks. The problem is if you accidentally tap it too many times then you can get the wrong result.