The product search's return fields are for the most part great, very comprehensive, and the use of JSON return values and REST input is certainly nice. However, the actual search -- the ability to return useful results to a query is, it seems, primitive. A browse through these fora indicates that this is well-understood by the BBYOpen team, with comments to the effect of, "It's in beta, it's experimental, we hope to add to it" in evidence.
However, those comments are from 2010. Is there any timeline or release schedule information on the product search?