Eclipse QVTd is an Open Source project. All code has been developed under the auspices of Eclipse.
Eclipse QVTd is a largely one man development by Ed Willink who has been the OMG QVT RTF (Revision Task Force) chair since QVT 1.2. Expect further revisions of the QVT specification to exploit feedback from the Eclipse QVTo and QVTd projects.
There is now a significant personnel and corporate overlap between the Eclipse QVTd committers and the OMG QVT RTF and so Eclipse OCL is pioneering solutions to many of the under-specification problems in the OCL specification.
Ed Willink is also project lead of the Eclipse OCL where the new pivot-based implementation prototypes solutions to many problems with the OMG OCL specification for which Ed Willink has been the RTF chair since OCL 2.4.
The many aspects of OCL and QVTd are converging; help welcome.