Go get it!
The bits in the overview I want to call out (because I've seen others trip over this) -
You really want to play with the jobs support. Before I started playing with it, I expected something akin to job control from bash (and many other shells), but it's much more than that - among other things, its built-in support for running jobs remotely and throttling. Check out this post from MoW for an example.
If you're new to PowerShell V2's remoting, you may also want to read Don Jones' article and Krishna's blog post for a quick conceptual overview.