I haven’t seen an “official” announcement, but Microsoft released betas of the XML for Analysis SDK and ADOMD.NET. XML for Analysis (XMLA) is “an open industry-standard web service interface designed specifically for online analytical processing (OLAP) and data-mining functions”. The XMLA SDK provides an XMLA compliant web service for SQL 2000 Analysis Services. ADOMD.NET provides a .NET library for accessing XMLA compliant web services.
I never have really gotten into Analysis Services, but I’ve wanted to. It’s always been a time issue – I just can’t focus on everything!