Virtualization combined with thin clients should replace a lot of PCs...

You can also try Sun ray thin client technology, it seems thinner :-)

http://www.sun.com/software/index.jsp?cat=Desktop&tab=3&subcat=Sun%20Ray%20Clients

as zvonr has raised Sun Ray, how does the Wyse setup compare with hot desking?

Oh, and as we've both mentioned Sun I guess Mr Bryant will be along shortly; how does Wyse's offering compare with HP - I seem to remember a sales pitch from an HP reseller a while back about one blade per desktop?