Solaris 10, as well as OS minimization in general, still seems like a hot topic these days. Following my Customer Engineering Conference '06 blog entry from San Francisco, I've uploaded a Solaris 10 Adoption and Minimization presentation [pdf] that I gave there last October.
Would love to hear how you're doing in this space and if you need help, would love to come and talk with you and your organization about lessons learned in the field on this very interesting subject.