A new version of push-it is available through extras-devel.

http://maemo.org/packages/package_in...sh-it/0.1.0-2/

That version holds the "start+pause mode". Maybe there is a better name for that ^^?

The screensaver-turn-off-thing will come later and the camera-button-thing is also a good idea, but that is a brand new experience for me. But thank you for your inputs. I think in my next holidays I should be able to focus on the stuff .
Let's see what the time brings.