As a MMJ patient in california, I was able to get my hands on one of the new e-joints by cannabee. It's slightly different than the other vaporizers on this site, but not combustion. It works by using cartridges of 100% natural vegetable based glycerin saturated with THC/cannabinoids, and an atomizer to vaporize the solution. I have only had it a for a day now, but some things I would like to comment on are : - You can get tons of "smoke" (water vapor) from these things, more than with any other vaporizer. - The taste is pretty bland/tasteless, doesn't really taste that great, and the exhaled vapor is virtually odorless and dissipates in seconds, and since it's not actual smoke you could definitely get away with using this virtually anywhere - Though it is a claimed to be a much healthier alternative to smoking, no long term studies have been done on the effects of e-cigs and inhaling glycerin based water vapor. For more info on this http://www.fivestarecigsblog.com/2010/11/24/propylene-glycol-vapor-safe/ is an interesting read, and we can conclude that it probably is safe. - While using this, I notice that it takes quite a while (5-10) minutes to feel the effects, such that I could smoke it for a few minutes and not feel anything for a few minutes after finishing my session. This is similar to most vaporizer's for me, as they are usually a slow onset. If you have any questions please ask and I will do my best to respond, and if you are lucky enough to get your hands on one of these, share your experience / comments!