there are no plans to make the source available to non-Khronos members. If you’re planning to make an implementation of OpenVG, you should join Khronos (or at least become an Adopter for OpenVG) as you’ll definitely want to have access to the conformance tests etc. once they are available.
We’re very much aware of the situation with sample code. Hybrid is going to make its high-performance OpenVG implementation (which is completely separate from the reference one) available on a couple of platforms in Q1/2006 and we should have at least some samples in that package. Hopefully others are working on samples as well (and willing to share them).