As we continue our journey to Windows 2012, the beta version of PowerShell V3 is out. You can download it from here. Remember, the files market WINDOWS6.1 are the installation files for Windows 7. One thing that I noticed is that the help files are not fully populated. PowerShell V3 has updateable help files. Here is how you update them.
Open PowerShell as an Administrator.
Now type Update-Help and press Enter
After a few minutes, Windows will need to restart. After the restart, go ahead and ask for a help file and you will see the contents that you are interested in.