Some "tools" like Drools are being supported to be CDI compatible (Nothing much to do with Seam 3/Apache DeltaSpike really; but through "kind" support of the Seam CDI/Weld guys).
It may be useful to have a CDI compatibale logo so that CDI users can see that the "tool" is truly compatible and open for use.
We are looking at using Drools for a project and are using CDI but have no idea where the integration is at. We also have no need as yet for any Seam3/DeltaSpike modules as CDI/EJB is working very well.
Anyhow; perhaps even Oracle should lead any "logo" initiative?