I have also heard of a jig saw being called a scroll saw. As well as a sabre saw with a blade that rotated with the knob on top that was called a scroll saw. It is supposed to make it more stable cutting near the edge of material. Have not used the scroll/sabre saw so i don't know if it is a cool tool or just marketing hype.

There are different names for tools and parts depending on where you are at and what kind of trade you are in. Just think about that the next time you are at a store and ask for a hickey, you might get slapped, get something that will get you in trouble when you get home, or if they know thier stuff they should hand you a bent piece of metal that goes in a lamp.

http://tinyurl.com/2ww3gw