Now that SAP is going to an integrated release approach for NetWeaver with NW2004s to ensure compatibility between components and simplify the overall versioning scheme, should I try to consolidate the multiple installations of NetWeaver in our environment? We have separate installations for Portal and BI and they are not always on the same SP level. What architecture should I consider (single vs multiple installations) as we move forward with other NetWeaver components such as MDM and XI?