With the release Office 2010 customers wishing to deploy this new version are going to have questions about its compatibility with Add-ins and other applications that interact with Office client applications.
The TechNet Office 2010 Compatibility Resource Center should be your first point of reference. It features links to all of the Office deployment planning tools and documentation as well as the Office 2010 Third-Party Software Application Compatibility List http://technet.microsoft.com/en-us/office/ff460851.aspx#Compat
Right now the compatibility list is in it’s infancy. Independent Software Vendors (ISVs) will find it beneficial to publish their products' application compatibility status information here to get this information out to their current and prospective customers.
ISVs can submit their application compatibility information for inclusion on this list via the https://www.isvappcompat.com/
web site (you must be a registered Microsoft Partner to be able to register products for inclusion on the list. Partner registration at the base level is free.)