csrcsr Is there a way to select other apps besides the default camera app for the 'double click power button'?
treequell csrcsr Yes, when you install a new Camera app, it should ask you which camera app you want to use with the double click button. You can set it to open that app all the time in the UI that appears.
treequell csrcsr Correct, only another Camera app. I reread your original post, and see you were asking for any app whatsoever. That won't work, I'm afraid.