nope, I've power cycled all the VMs now and two of them are still showing connections to the iSCSI device, but reporting nothing when I query them with powercli. In the settings they are showing one drive and it's on my EMC SAN...and no cd... also no s/w iscsi inside the vm either... not that vcenter would know about that I guess...
frustrating. I'm goign to remove the CD-drives from these two machines next... but that does seem a bit extreme.