Just a quick update to say that I have got the Sugar desktop running in a VM install of Hardy. It was a bit of a pain to get it going - there were several dependancies not mentioned in the package requirements. Although I am using a virtual install of Kubuntu, which meant I had to install some Gnome components to get the Sugar interface running, the missing dependancies would not have been there in a standard Gnome system.
Once I get a few minutes, I will draw up a list of those other odd deps and send them to the devs.
Sugar runs very well in the VM to be fair to it - I can even connect to Slashdot using the modded Firefox browser.