"evidently the SOL jetboil does one thing and one thing only......boil water (according to the reviews and info I read) so if your trying to fry some fish maybe you would indeed be SOL"

sorta true, but not quite.  as Jim has pointed out, he fries fish in the JetBoil frying pan.

a very useful accessory for the Jetboil is the pot support and stabilizer kit - with the pot support, you can use any pot or pan on top of the jetboil (losing some of the fuel efficiency gained from the heat flux ring, or whatever its called) - i use a two quart pot on top of my stove for  non-solo trips when I want to boil up more than a liter at a time.  - and the little fold up 3-leg stabilizer makes a fair bit of difference, esp on uneven ground or  a not so flat rock - they would work with any size/brand cannister.  The SOL has the stabilizer included as part of the package - regular JetBoil does not.

  The main reason "cooking" isn't too easy on any cannister stove is the relatively small burner, which concentrates the heat in a small area - i.e hot spots.  The Jetboil pans, with thier heat exchanger rings tend to diffuse that hot spot, ergo, less of an issue using one of thier pans.  You can also buy or make a heat diffuser plate that helps to do the same thing.

I did try to find if anyone had done a real comparison between using a twig fire and a twig stove, but haven't found one yet - did find reviews for the Solo stove - one comment of note did concern stability, you have the same issue as with any narrow base round bottom item, such as a cannister, or even a Peak-1 stove - maybe some type of stabilizer would be good on those as well.  Another comment was about the black residue on bottom of pots, same as you'd get from any wood fire - when I use my little esbit stove, I just wrap a small piece of aluminum foil around the bottom of the pot, which "collects" the residue - if it gets too gunky, I can just change out that piece of foil.