cool thread about STANDARD's in-house fabrication facility. they will make just about anything you ask for, in addition to their usual bmx lineup, including road and... mtbmx. although someone posted up a frame, this is the first complete photo i've seen of a STANDARD mtbmx proto:
http://www.vintagebmx.com/community/index.php?showtopic=27033699&st=40
http://www.vintagebmx.com/community/index.php?showtopic=27033699&st=40