Flame Cultivation?

Big Picture Agriculture:

Red Dragon is one company which has designed commercial equipment for industrial thermal weeding. This method uses an average of five gallons of propane per acre, or about half the cost of herbicide application.
Row crop flame weeding was used back in the 1930s, using kerosene. Research using the method has been done on 30 to 40 different crops, with good results. The goal is to rupture the weed plant cell walls, something that can be accomplished in one-tenth of a second with exposure to flame. The gas pressure and ground speed are used to control the heat exposure. It is most successful in use against small broadleaf weeds two-inches tall or at the 3-leaf stage. It works well on morning glories or bindweed. Flame weed control is less successful on grasses and perennial weeds. If necessary, repeat flaming three to five days apart is better than a one time heavy flaming.
The University of Nebraska is undergoing testing using mechanical flamers, and is hinting at a possible growing interest among conventional crop producers due to RoundUp weed resistance. They are working with manufacturers to make four-, six-, eight-, 10- and 12-row units.

Man, that looks really cool, but it just seems crazy to me.  This definitely doesn't look like something us no-till folks are going to jump in to.  Of course, the past ten years have had some pretty high propane costs, too, so that has held it back.  I remember seeing a flame cultivation ad in a farm magazine about 8 years ago and not believing that anybody would be doing it.  I guess some folks may be doing it more going forward.  I could definitely see adopting this technology for my garden, because, hey I love playing with fire.  And no, Grandma, I won't wet the bed.