Well i hope we can incorporate some of Jakobs work because the screenshots he included in his post looked pretty good.
I saw cass responded to him.
In my view the biggest advantage of "my" GUI was that it supported multiple screens simultaneously which allowed for true multitasking - you could switch between different screens, zoom out and zoom in, just as you can in any modern OS (e.g. alt-tab in Windows).
But we need to take into account that it was a fully fledged desktop app so such features were much easier to implement. A web app has more limitations in this respect.
As I said before, I like the new Graphene GUI a lot. It's clearly not a finished product at this stage but I can already see that it has very solid foundations in terms of UX. I just enjoyed using it. However if it had a kind of task bar at the bottom where all recently used screens are listed and I could switch between them in any order I liked (i.e. not relying on the browser back & forward navigation) - that would make it absolutely great.