Wow - double top tube. Puts me in mind of the "Buffalo" brand of bicycles I used to see in Mexico, circa 1970. You can see a similar bike here
http://www.bikejuju.com/2009/bikes-of-coba/ reportedly photo'ed by none other than Sheldon Brown.
I don't think you'll see them anymore, but they were basic, sturdy, and relatively cheap (at the time).
Similar objectives in Calfee's bamboo bike project effort. He is also focused on local sustainability.
Also, Bikes not Bombs - but I think they used to have more focus on Latin America. And, they focused on recycling bikes and parts, not creating new ones.
If I recall, interesting thing about their (BnB) effort with bikes - they had lots of usuable frames, wheels, etc. - their shortages were in "consumable" parts - cables etc (probably spokes, too). And, these shortages made the whole effort pretty difficult. I'm not sure, but I think that expense may have actually made the whole effort not much different (financially) than buying new bikes from, say, Mexico.
Good on SRAM, I wish them luck.