Programmatically Retrieving Team Project Collections and Team Projects from the Team Foundation Server 2010 API

There is an excellent blog post from Taylor Lafrinere on MSDN that deals specifically with retrieving a list of the team project collections from the Team Foundation Server (TFS) 2010 client API. The blog post references the RTC version of the TFS 2010 API and is dated from January of 2010. However, at the time I found it (April of 2012) the example code worked as expected.