Extracting All WSPs from a Farm in SharePoint 2010 Using PowerShell

Earlier today I needed a way to extract all the WSPs from a Production farm and copy them to a second farm (UAT).  I found this article and PowerShell script which did exactly what I needed.  Enjoy!

http://www.sharepointbleached.com/2011/03/extract-wsp-solutions-from-sharepoint.html