A very interesting idea by the Crazy Warlocks of Google: http://code.google.com/summerofcode.html
I had submit an idea: an XML mapping of SQL Relational query language.
Other than the “simple” XSD (named XSQL)(derived by an old and not continued idea), I had started to develop a Language-Traductor SQLtoXSQL developer in Java with ANTLR.
I hope… ;-)
[posted with ecto]