Originally Posted by ilans1
Ok, so this keeps bugging me:
Lets say I open the web browser, and then I hit the 'End' button. I get back to the Home screen, but the browser doesnt actually close, it's still open and using resources. Same for other apps as well. Question is, how do I know which apps I have running in the background, without opening each one and specifically hitting 'Close' each time?
Hold the ALT key and press the menu button to the right of the trackball (between the trackball and the END button). It will display a list of running apps, much like Windows does with the ALT-TAB key combo).
As others have stated, not all apps can be closed. These (AFAIK) cannot be closed: