In April I wrote about Reporting Services in SQL 2008 with MOSS 2007 (here), and also a small article on the SQL 2008 feature pack February CTP. This was all tested on the February CTP, of SQL 2008. The feature pack is required to get the Add-In for SharePoint Integration. Andrew has beaten me too it and written a great reference article on the latest RC0 version of SQL 2008 Feature Pack that can be found here. Between PPS SP1 and the RC0 release, I hope to get round to testing all the new releases as soon as possible.