Hi Michael, Bent,
Not a big deal to build from trunk, but if a release is coming soon we'd prefer the "safety" of doing that.
Haris (cc'd) has been having success building both 32bit and 64bit Windows versions of the released library for a few different projects (FDO KML Provider, GeoREST, couple internal projects) so if there are any blockers there from your end because you don't have access to the tools, he may be able to help.
Jason