What exactly is MQ that was briefly mentioned here:

http://blogs.msdn.com/somasegar/arch...08/490694.aspx
and
http://blogs.msdn.com/texblog/archiv...01/541918.aspx

Is it a process? Strategy? Set of techniques? Or is it simply a set of priorites?

What were the main lesssons you learned from the MQ exercise and what parts of it can you take into your normal everyday development?