From
http://communities.vmware.com/servlet/JiveServlet/previewBody/23650-102-2-31673/log-insight-10-insta...
and
http://communities.vmware.com/servlet/JiveServlet/previewBody/23713-102-3-31651/VMware-vCenter-Log-I...
I do believe the only devices that Log Insight collects data from now and you can pair with are
1. ESX hosts (script is provided)
2. vCenter (GUI)
3. vCops (GUI)
Do remember to mark my post as "helpful" or "correct" if I've helped resolve or answer your query!