Power Fitnesse (One Fitnesse against multiple VMs via PowerShell 2.0)

Check this interesting post from Mike. You will find an idea how to specify credentials w/o promt for PowerShell remote command execution. This is the common thing for the “Power Fitnesse” http://maplpro.blogspot.com/2010/03/powershell-20-plus-fitnesse-slim-plus.html