Time Machine Failed Me
I needed to go back into TM over the weekend to look for a backup that I had presumed that TM had backed up a few months ago and to my dismay TM had'nt. There is gapping big hole in time that TM did'nt back up anything in the Application folder. I'm talking six months of no backups at all to that folder which coisisdees with the release of Mountain Lion.
I'm squarely blaming Apple for this.
MacBook Pro, Mac OS X (10.7), MacBook Pro (2007) (2010)