I dont like the e-cigarette companies argument about how the harmful chemical found in these is the same as what is found in the patch and gum. Its an irrelevant argument because the patch and gum are meant to be used temporarily while quitting nicotine altogether. These are meant to replace cigarettes. I still believe these are 100 times safer than real cigarettes, but part of that is just hope. Intense studies need to be done ASAP, as these products easily show more promise than anything else with regards to getting people off of tobacco. If they are safe as advertised, its revolutionary and IMO within 10 years everyone will switch over. If they arent that safe.....thats another story.