Custom Skew and "Swing Animations"

[cohen72]

How would I going about changing the skew of the transition. For example lets say I placed two transitioning views side by side (like one of those old scoreboards flip scores), and wanted to have one flipping as if a little towards the left, and the other a little towards the right.

Also, sort of related ... if I wanted to create the effect of the view "swinging" and "bouncing" back into place, any way to customize the transition for this? Imagine the new view would transition a bit past vertical, almost appearing to go backwards for a sec, and then transitioning back to being straight. Makes sense?