If this goes as well as the Vista rollout...
...then this maybe the reason to switch to SUSE or others. If you get down to it - Windows is still many years behind the alternative OS's in administration and security. For example - AD(LDAP) intergration ( #8), IIS 7.0(Apache) being modular (finally!)(#6), and SSL VPN have been available for a while on other OS's.
Looks like they are making use of the 277(?) patent infringements and the Open Source Integration branch they built a few years ago.
If they drop support for 2003, which they will threaten to do so that people get on the wagon, then I switch to something that has had support for the past 15+ years and is only on it's 2.6 version.