eWeek had a short article on 11/29/05 about the integration of the Dynamics GP team into the MS Office group. This article certainly makes me think that despite losing money, Microsoft is really committed to the MBS products. You can find the article at:
http://www.eweek.com/article2/0,1759,1893792,00.asp
eWeek looks at MBS’ integration into Microsoft
Archived post from 2005. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.