This is a statement from a seemingly more official document that can be viewed on the PPS TechNet site at:
http://social.technet.microsoft.com/Forums/en-US/ppsplanning/thread/9d02d0d5-2fd3-4dcf-8517-45fb5ba9177e
The quote is from the last sentence of point 1- What will happen to PerformancePoint Server?:
"Performance management is a critical component of business intelligence and Microsoft will continue marketing and R&D investment in this area in future product releases."
Maybe there is another life for some type of Planning application? Holding out hope that Microsoft will provide guidance soon on the vision of this statement.