Omni-TS recently announced a beta program for their solution that integrates GroupWise into an Active Directory environment. Think of it a little bit like a Novell IDM solution, but one that is wholly focused on GroupWise. It can either import users into an AD infrastructure, or link an existing eDir account to an existing AD one. It allows users to authenticate against AD but, maybe more importantly, it allows administrators to manage their users from a single point.
Omni are looking for beta customers so, if you are interested, visit this page for more information and details on how to sign up. You will find on-demand presentations and a more detailed description of the offering there too.
Disclaimer: As with everything else at Cool Solutions, this content is definitely not supported by Novell (so don't even think of calling Support if you try something and it blows up).
It was contributed by a community member and is published "as is." It seems to have worked for at least one person, and might work for you. But please be sure to test, test, test before you do anything drastic with it.