To use flashlight, I believe you need to open the camera lens slider and then access the function from in the status bar area - I've not tried it myself, but it mentions something to that effect in the software description.

As for pixelpipe - is that to do with sharing pictures etc? Maybe that is only available once in the sharing menus when looking at a picture. Again, I've not tried that one, but I'll see what I can find if no one else can confirm it!

(Sorry - I read that as pixelpipe, so I might be mistaken as to the app you mean - either way I can't find more information for the moment).