[seanmcdirmid]

I was disappointed also. I wrote up a (unpublished) paper [1] on this topic once; the gist is that physics presents both an opportunity and a huge challenge for UI.

[1] http://research.microsoft.com/apps/pubs/default.aspx?id=1917...

[phryk]

Thanks for the paper, will read into it later todady as this is a very interesting topic. :)