These appear to be almost identical to Knitpicks Interchangeables. The biggest difference I see is the cable is black, they have a size on the metal part and the wood ones have a different color for each size.
I really like the size marking and the different color for each tip. Going to wait a bit till we see how they are, but I'm interested.
http://www.yarn.com/index.cfm/fuseac...-F7D7B40FB4A0/
http://www.yarn.com/index.cfm/fuseac...een=3118005352