I've not seen that description, but I can tell you that Santana has played around with single bikes a couple times. Once, many years ago, they built a few all-terrain bikes (very rare) and then a few years back they solicited feedback from a number of the better custom single bike builders on geometry as part of a very limited build of Scandium single bikes. Santana used what they had in hand for components -- 1.25" headsets and 160mm rear spacing -- to build these bikes which were ostensibly intended to allow them to evaluate how well Easton's Scandium aluminum would be to work with and to hold up as a tandem frame material. These were coveted by Santana-devotees and everyone once in a while one will show up in the second hand market. While it could be argued that these single bikes were built for super-big riders, that is also true of every Santana tandem. A good thing for very large teams. There is also at least one Beyond single bike that was commissioned by Jay Leno as a gift for former US President Bill Clinton after it was determined that the Beyond tandem Leno had given to President Clinton and his wife Hillary, the Senator from New York, was not allowed under the Senate Rules for gift giving. I believe Leno may still have the Beyond tandem but can't be sure.