I have to agree with Evil that I really don't think that SDVI is a scam.. After all, go to some of the top retailers and you will find their products on the self. In my mind, there are still lots of questions that need to be answered and I believe they will in time for those who are willing to wait. Don't know if you will like all the answers but they will come..
Full disclosure: As noted before, I sold my position on the last run and moved on so I have no stake here at all.