Microsoft to abandon PerformancePoint Planning Server. Planning component will be discontinued

Jan 23
Microsoft to abandon PerformancePoint Planning Server. Planning component will be discontinued

Apparently, the rumors are true.  This is the closest "official" item I've been able to find, but it does appear MS will abandon the Planning component for now:

http://blogs.msdn.com/bi/archive/2009/01/23/microsoft-bi-strategy-update.aspx