People screw this up and or mis-state it all the time, so let's be clear:
1. Scubapro designs its own regs then contracts with Tabata to manufacture their designs. It makes sense for Scubapro to do that as Tabata has state of the art manufacturing facilities that would not be economic for Scubapro to acquire and maintain for just the volume of regs they sell. It does not mean Tabata "makes" Scubapro regs in the design sense. It's a Scubapro product with Scubapro patents that they subcontract to someone else to produce.
2. Under some of the manufacturing agreements, Tabata has in the past sold licensed copies of Scuabpro designs through TUSA. TUSA = Tabata USA. Note the capitals letters here and the name makes sense. Tabata did this for over a decade with the Mk 5 and also sold the MK 16 R390 as the RS-460. The MK 16 is the R-400 first stage in the TUSA catalog and the R390 is the S-60 second stage.
In that regard, the possibility may exist for TUSA to market a copy of the Mk 17 once Scubapro's exlcusive rights under the manufacturing agreement expires, but that may or may not happen.
Halcyon has recently announced plans to sell the MK 17 as the H-50D first stage and the Mk 25 and the H-75P as well as the R390 as the Aura and the G250V as the Halo. Deliveries are supposed to start by the end of March 2010.