The RDF Data Access Working Group (DAWG) has just published SPARQL Query Language for RDF Last Call Working Draft 21 July 2005 edited by Eric Prud'hommeaux, W3C and Andy Seaborne, Hewlett-Packard Laboratories, Bristol.
Yes, last call. That is, the working group thinks it is done. There are many changes and improvements ranging from text and formalism polishing, some syntax parts and some more substantial changes. SPARQLing drinks all round!