Double Tap Slide Zoom

I have an idea for a better alternative to multitouch pinch zoom than just the double tap zoom. Many people complain that the double tap zoom isnt intuitive since it doesnt zoom at the level you want it too. I dont know how feasible my idea is and dont know how it could be implemented but I thought Id share it anyway.

Double Tap Slide Zoom as Im calling it is basically the same as double tap zooming except on the second tap you keep your finger on the screen and slide up to zoom in or slide down to zoom out.

 

Awesome, I was worried about how this might be never implemented but since someone already had the idea then my worries are no more. Now if we could only get this included standard in Android.