All right, pics of Sugino's new prototype cog design have leaked on the interwebz so I also need to post them here. It seems that they are going the Miche-way with some kind of a carrier design.
I need to add that most people who have tried what appears to be quite the similar Miche-system, often haven't been so happy about it, especially if you ride on the streets and tend to skid a lot and whatnot.
The Sugino new came from here:
"Not sure if these are out yet, Sugino rep told me it was a prototype coming out later this year. You get 3 cogs, 16/17/18 with the set, and there is no need for a chain whip, just a shimano road bb tool, which does the lockring too. To change cogs, you just take the lockring off, and the tooth section of the cog comes off laterally."