Brian Harry highlighted in his latest post how Gartner had included Visual Studio and TFS in the Leaders quadrant for the second year in a row! Here is a picture of it:
I had never heard of Soasta/Tricentis/Test Plant/Original Software, I will have to check these ones out.
This report, along with the other one on ADLM tooling makes for an interesting analysis: Microsoft has an edge over ADLM quadrant leaders in that some of the others (Rally for instance) do not not even show up here. I will come back to that later.