What is the Difference Between a Jigsaw and a Sabre Saw?

After reading the recent review of the Craftsman 20-Volt Lithium-Ion Cordless Sabre Saw, a reader posted the following insightful comment on the bottom of the blog post:

What is the difference between a sabre saw and a jigsaw?

In Jigsaws and Sabre Saws, we detail the origins of both of these saws and how they are different (as well as how they are similar).

(c) 2008 Chris Baylor licensed to About.com, Inc.