Hola, so I have been kind of a forum lurker here for a while, but after an idea I had, I decided that I need the opinion of experienced e-smokers.
It looks to me like the major inefficiency of a normal atomizer is the steel wool-to-fiber e-liquid transfer. As long as there is liquid in the wick, there is no reason it should burn, but the cotton-like stuff in the cartridge doesn't always allow the proper (or adequate) amount of e-liquid to flow into the fiber, thus letting the fiber burn.
My idea is to eliminate the steel wool altogether. Imagine an oil candle...the perfect amount of oil needed to maintain the flame is drawn, through capillary action, to the tip of the wick, and burnt off. It's self-regulating, rarely burns the wick (except occasionally at the tip) and pretty damn stable. Now imagine that, where the flame would normally burn at, is replaced by a ni-chrome heating coil, and the lower reservoir is filled with e-liquid. As long as the thickness of the wick was able to match the exact amount at the exact speed of the coil's vaporizing ability, then there (in theory) would be no burning of the wick...a simple mass/flow equation? Also, because very little fluid is actually required for the e-smoke, a small reservoir the size of a mini's cartridge could last for quite a while!
I have actually drawn out some good diagrams, with some other smaller features not mentioned here, and if I get some time, I'll upload them.
Oh, and I'm going to school to be an electrical and computer engineer one day, so this may be right up my alley...