There's a new project out there still in a 'closed' beta. It is closed, but you can go to www.powergui.org and request an account.
From the FAQ: "PowerGUI is an extensible graphical administrative console for managing systems based on Windows PowerShell. These include Windows OS (XP, 2003, Vista), Exchange 2007, Operations Manager 2007 and other new systems from Microsoft. The tool allows to use the rich capabilities of Windows PowerShell in a familiar and intuitive GUI console."
This is a pretty good idea on using a graphical method to represent objects from cmdlets.
You can find a Exchange 2007, and I think it is pretty powerfull as far as viewing and actually being able to make modifications.
I might blog about this a bit more this week if I find the time.