Anybody have any experience with this keyboard?

http://www.datadesktech.com/desktop_mac101e.html

Or others that had this functionality?

I'm curious how it is able to use both the ADB and Mac Plus interface ... does it first translate the signals for the Mac Plus and the like the prototype adapters I've seen for the Cassie, convert that signal to ADB?

http://www.applefritter.com/node/314

http://www.applefritter.com/node/313

http://www.applefritter.com/node/294

Or does it use some other method?