05-28-2013 11:17 AM
The active frames page contains your open apps.
When you swipe up from the bottom of the phone (blackberry logo) onto the screen you are taken to your active frames. 4 apps show per page and you can swipe up and down (on the screen) to see any other open apps. You can have 8 apps total opened at the same time right now.
If you open a ninth app the last app in the list (least used) will close automagically to allow the new app to open.