Remaining rather elusive the corporate giant simply says this Xi will be "changing day by day, week by week, in real time," which is good I guess.
Of course we don't really know exactly what Xi is, other than it's meant to be mankind's "first console-based Alternate Reality Game". It's available for free anyway through Home.
"Called Xi , the adventure takes place in a series of secret areas in Home – and beyond – changing day by day, week by week, in real time. Anyone with a PLAYSTATION 3 can join in the fun for free," writes a Sony exec on the .
"To discover the mystery of Xi, simply log on to PlayStation Home and look for the graffiti on the wall in the main square. Find that, and all will be revealed..."
Well, what are you doing here? Go log into Home, Xi demands obedience... probably.