FWIW, it already reported here:
http://www.flyertalk.com/forum/showthread.php?t=879105
And IMhO, not too many companies have the capital (or access to capital) to pull the trigger on the deal. Furthermore, UA already has almost 3B in assets that they could still exploit (although I am sure M+ is figured into that number). Finally, a sale in todays market would not be for top potential dollar.