Yes, but no. I was working with this configuration for some time and it is really nice if you're satisfied with life inside MS's walled garden. The problem is

Yes, but no. I was working with this configuration for some time and it is really nice if you're satisfied with life inside MS's walled garden. The problem is that there is absolutely no interoperability with standard *nix tools. What's worse, PowerShell pretends that there is - `ps` in your example is just an alias for 'Get-Process' cmdlet, the same is true for cat, ls and other things. Aside from that PowerShell is really solid shell. You can extend it with C# code and you get access to many .NET feature both in the command prompt and from PowerShell scripts. The scripts are quite nice for a shell scripts, it offers a few built-in data structures like arrays and hashes, there is a quite good autocompletion, even for .NET classes and objects and so on.