Topic: Another CMS with desktop simulation.
Im developing something like a file-based CMS with database management, that will be released as open source. It uses xajax and Dojo (only widgets, not .io), but Dojo is optional (I have "interface complexity levels", if you use Opera, you will not see Dojo-style windows).
I call it "Nido"(nest in spanish), is not done but It has the windowing system working, if you want to give it a look, here are two links:
All the objects, properties and methods are named in spanish.