Windows MultiPoint Server has been for a couple of years, and it's a very clever bit of technology.
In a nutshell, Windows MultiPoint Server allows you to plug multiple screens into a single machine and gives each user their own virtual Windows 7 computer, with a full PC experience with multimedia, audio, USB ports etc - saving on hardware costs and power consumption. The technical phrase is 'Shared Resource Computing', but basically it means that as you come to replace computers in IT suites and your library, you may be able to save money.
There's a dedicated Windows MultiPoint Server website, and you can find out what customers think about it on the Windows SBS blog, as they have a bunch of short videos, with customers sharing their experiences. It's particularly useful for schools, especially in IT suites and open access areas like libraries - you can have a little cluster of users, with just one computer serving each group.
If you want to evaluate it, and review MultiPoint Server 2011 for your own situation, then you'll be interested to know that there is now a free evaluation download available, which gives you the complete installation, and can be set up on a spare machine.
If you're a Microsoft education partner, then this is a key product to consider for your infrastructure strategy, as it allows you to reduce cost of an infrastructure refresh whilst delivering the full user experience.