For those of you who can read German and grabbed it
while it was still
available (it has been taken down since), the difference between the Limux
study and the Microsoft study is largely that the Limux study does assume
licence costs are payable to Microsoft, both for new computers purchased,
and to upgrade old Windows versions. The Microsoft study does not . . . If
they had, they would have to make public how much rebate Microsoft is
willing to give to large customers.
So we get fed partial information . . .
"Microsoft partly releases study on Munich's Linux migration"
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
Ph. +64 (7) 858-5174