I agree, the MS solution is for those that are computer illiterate and don't have the time to learn to setup a normal server. I was only pointing out that there's nothing new or exciting about what they're offering.
In actuality, most of the modern linux distros are pretty easy to install and administer. You can setup a simple LAN server with very minimal knowledge of linux. Also, you don't need to run linux of the non-server computers.