This is not brand new, its synthesis and taste testing have been described on that site we cannot link to, and a variety of synthesis for it, including shulgin's papers on it are posted on the sister site of the site we cannot link to.
I'm not 100% sure of which particular "site we aren't alowed to link to" you're referring to, but if it sound a bit like Sodium, and I think it might. I found discussion there, albeit very limited on DMMDMA-2 but not DMMDMA. DMMDMA-2 has its methoxys on the 2 3 positions and the methylenedioxy bridge on the 4 & 5 positions. This still isn't what we are reffering to here... we're looking for 2,5-dimethoxy,3-4-methylenedioxymethamphetamine. There's no mention on the site, that I can find, of DMMDMA. I'm not aware of its sister site though.
"Since this stuff is an amphetamine, there is NO WAY that the authorities are going to be complacent with it. In short, this idea completely falls through the cracks."
As far as I know buddy has 0 intention of marketing this stuff. It would probably be pretty pointless as generating mainstream interest in yet another obscure psychedelic analogue would be both difficult and just highly unlikely.