Originally Posted by Qball
When you "pop" with both feet you are basically just jumping and using only the strength in your legs. An ollie uses the tail of the board to spring you into the air. The amount of spring/snap a board has when you ollie is also referred to as the amount of "pop" a board has.
This is how ive always known it. Jumping is jumping and Popping is using the reflex of your board to propel you