Is there a way to turn off the backlight fade out when using certain apps. For instance when i watch videos on the torch, the screen tends to fade out due to "inactivity" but technically the phone is not inactive because i am watching a movie, the same goes for when i am using google maps to navigate.
If you are watching movies that you have uploaded onto your phone you can go into: Media > Menu Button > Media Options > Then tick off "Turn Off Auto Backlighting"
For youtube or any other program I do not think there is a workaround. The Blackberry is set to automatically go into "backlighting mode" if the phone is "un-active" The highest time-limit you can choose is 2 minutes.