http://reformgovernmentsurveillance.com/
Of course because companies worldwide may choose other software in the future.. too late though, the US seems to have no idea which impact this GCHQ and NSA surveillance and industrial espionage has had on the 'rest' of the world.
The next Exchange server (just of all
the MS EMail server) will be placed in - you guessed it - the 'cloud'.
Any company that follows that way will be either a producer of low grade crap products, unbelievably dumb, or it will store its mails and all secret company drawings elsewhere.