He specifically mentions PowerShell. Compared to what is available for UNIX-like systems PowerShell may very well be terrible (I haven't used it). There is more to the command line experience than the shell itself.
Emotions aside, PowerShell is definitely one of the most innovative shell adaptations in the past few years. Some group in MS tried really hard to take things to the next level.
Now whether that level is where people want to go-- well, that's hard to say. It's difficult to judge "success" for this sort of a thing. How much usage is because MS is pushing it and how much is because it scratches some itches?
For me, it's slow to start up, and not overly useful for my everyday tasks. Still, most of the demos are impressive and the idea of piping objects around rather than raw text/files seems like an idea with a lot of potential.
Again, the shell itself isn't really the issue. Can I SSH into a Windows box without third party software? How are the command line utilities for things like SQL Server? Are there any utilities included similar to common UNIX tools such as grep? Is there a command line file editor?
