I talked to DVDO concerning a few issues/questions about my setup, and asked about the status of the implementation of 480i output through HDMI. I forgot to ask if that info was postable in a public forum, but I will be glad to pass it on through PM. It may very well be old news to some, but it is from the horse's mouth.
I still feel the iScan HD+ is the preferred upgrade, but the added cost of SDI compells one (myself) to consider the other options a little more closely. These include the Lumagen HDP, the Denon 5910, and the iScan HD+ through component/480i.
"Guess I'll have to buy the White Album again"