From the article:

“Given the number of mergers and acquisitions in the financial services industry, most institutions have a heterogeneous infrastructure environment, complete with more than one operating system. If only the systems vendors collaborated to increase interoperability, that complexity and risk could be reduced. In November 2006, Microsoft and Novell forged a pact that just might make that dream a reality.

Some big name financial firms reacted quickly to the news. AIG, Deutsche Bank and Credit Suisse have already announced their intent to take advantage of the benefits of the interoperability agreement between Microsoft and Novell. Under three separate customer agreements, Microsoft will deliver to each company SUSE(R) Linux Enterprise subscription certificates, allowing these customers to take advantage of the Microsoft and Novell agreement. “

Very informative article about the agreement, particularly the survey that shows customers accepting a mixed environment more easily than a divided one.