If your interested Microsoft released " Office Business Applications" OBAs Their first target is a Reference Application Pack for Loan Origination Systems.

Thanks Mike now every one and their mother will think they can build an LOS and Wholesale system.

Video: Microsoft Loan Origination Reference Architecture

Building Distributed Applications

Architecting Regulatory-Compliant Architectures

Building Distributed Applications

Architecting Enterprise Loan Workflows and Orchestrations

Building Distributed Applications

Office Business Applications: Building Composite Applications Using the Microsoft Platform

MSDN Financial Services Industry Center