We published our first book on the Office Business Applications model in December. You can also download the book here.

Congratulations to Atanu Banerjee, Moin Moinuddin, Mike Walker and Javed Sikander who leads the Industry Strategy architecture work in my team.

I believe that the platform is evolving rapidly - that the expectations on the part of our developers and partners and customers are much higher today - and my opinion is that the work we are doing with the Microsoft Office Server System (MOSS) will play a critical role wrt business applications.

OBA is a good place to start if you are looking to understand what we are doing in this space. For the architecture perspective I would recommend taking a look at our Office portal on the MSDN Architecture Center.