Should you have missed this news due to vacations (just like I did), here it is again:
Microsoft is pleased to make available the Financial Planning Accelerator (FPA). The FPA is source code and project files derived from the PerformancePoint Server 2007 Planning module. Based on requests from customers and partners, we are making this code available on a no-cost, individual license. This is unsupported source code that customers and partners can use to support or change PerformancePoint Server Planning functionality. Derived object code files can be distributed to end users with Microsoft SharePoint Server Enterprise Client Access Licenses.
The full story can be read here: http://blogs.msdn.com/bi/archive/2009/06/18/financial-planning-accelerator-announced.aspx