Ask - and ye shall....
http://www.dremel.com/en-us/Attachme...aspx?pid=MS400
Smallest footprint of any jig-type saws that I'm aware of - that actually have some measure of control.
Main drawback is a lack of power. However, since it's mostly used for a very narrow purpose cut - such as the single cut @ the back, I haven't found that to be a problem.
Mine came as part of the Dremel 4000 kit that I bought. Along with the little plane attachement, the jig saw attachement was something I thought I'd never use. I was wrong on both counts.
B&D, Skill, Ridgid and Milwaukee all have small - think mini Sawzall - type saws that can get into that tight spot at the rear of a sink cutout near the backsplash.
As their names imply though (the Milwaukee is called something like Hackzall), they are for fairly rough work.
Ditto that..sometimes even my Dremel's small footprint is too much &/or going up from underneath - such as in the case of a countertop already mounted - isn't an option.
The Rotzip w/the optional cutter wheel attachment can get almost flush to the backsplash.
Last, but certainly not least, is one of the multifunction tools. Both my HF and my Dremel can make cuts that are, for all practical purposes, flush.
Re: the OP - I picked up a GMC jigsaw on closeout @ Lowes for about $20.00 a few years ago. If/when it ever wears out, I'll probably replace it with one of the Bosch offerings.
Maybe...
It's hard to say. Ever since I picked up one of the HF multifuntion tools, that's become my "go-to" for a whole lot of rough work that I used to use a jig saw, recip saw and circ saw for.
In all honesty, I'd have to say if you want a jig saw for "rough work", take a good hard long look at the multifunction tools.