Might have been discussed in this thread before, but who am I to read through 101 pages in 5 minutes. I am nought more but a simple man.
The date is a hint.
PlayStation 20.02.2013
Playstation 2(0).(0)2 = 4
Then why not just hold it Feb 2nd to get the "2+2" reference aside from most news media sources being off. Failing that, why not just hold it on Feb 4th for the "4" reference. I don't think the date has anything to do with the announcement other than being a really stretched coincidence.