Special Operations software has just announced SpecOps Command: PowerShell Remoting through Group Policy. I was lucky enough to see a neat demo last week while in Stockholm - this is a neat tool. As I understand it, it'll be formally released at TechEd in Barcelona.
Basically, SpecOps uses group policy to send out scripts, cmdlets and (I assume providers) to client systems. These scripts are then run on the target machine (one, daily, weekly, etc) and the results returned back to a central server. A very very neat solution to the lack of remoting in PowerShell V1. And even when we get V2 (a preview edition of V2 will be available in Barcelona), GP may be a better option due to permissions on the local systems.
I can't wait to get my hands on this code! Yet another aspect of the power of the PowerShell community - when there are gaps, someone or some organisation will just fill them. PowerShell rocks - and so does SpecOps Command.