PowerDbg: a great module to write windbg script

Last week during the trip in Las Vegas, I learned something about PowerDbg, a PowerShell module which can automate windbg debugging. It is really a exciting tool and just what I have been searching for a long time.
During the debugging, we may wish to analyze elements in a big array one by one, but manually doing so is too troublesome, for instance, one of the element is not disposed or one of the element's flag is not set correctly.
In this case, if a script can help us do it automatically, it would be great.
PowerShell is microsoft's new shell replacing the old WSH. It is strong typed and based on .net framework, can access all .net framework.
It can also be integrated with windbg: Windbg works as debugging server, PowerDbg as remoting host, sends debugging commands to windbg,
retrieves output, parses them and continues analysis.
One sample is like:
http://www.leeholmes.com/blog/2009/01/21/scripting-windbg-with-powershell/
PowerDbg can be downloaded from:
http://powerdbg.codeplex.com/
The latest staple build is 5.3, I did not try the 6.0(alpha). I strongly suggest the pscx and powertab modules. The first is an extension for powershell and the latter can provide intelligence in shell.
I will later post some of my sample scripts.