How secure is the front facing camera?

Is there a way to tell if the front facing camera is on? Since iOS supports multi-tasking. From the security side, is it safe to assume the front camera is always on, unless a tape is covering it?
thanks

When not using the Camera app, it is not on or running in the background. The Camera app is quit when leaving the app just as it was quit with leaving the app prior to iOS4. Just because an app is in the fast app switching and recently used apps bar or dock does not mean the app is running in the background. Very few apps will run in the background when leaving the app such as a music streaming app and a GPS navigation app. Some 3rd party apps will be placed in a suspended state when leaving the app such as with a game. An app in a suspended state is open but not running in the background - it is suspended or frozen not using any processor cycles or battery. Nothing has changed with the Camera app in this regard with iOS4.
http://whenwillapple.com/blog/2010/04/19/iphone-os-4-multitasking-explained-agai n/

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