btw, the ad wasn't created by Sony - just for them. Deutsch Inc (A german ad company) made it. http://en.wikipedia.org/wiki/Deutsch_Inc.
Some easter eggs:
"The writing above the door at 25s says 'Vivat Ludos Longe,' which is Latin for 'Long Live Play.'"
Sweet Tooth's Ice Cream Truck
Metal Gear Mk.II (Metal Gear Solid 4)
Parappa the Rapper
Game currencies, orbs from Little Big Planet
Weapons: Lightning's sword (FF13), Omniwrench (Ratchet & Clank) and presumably some guns from Resistance series (Auger ?), hoping to see plasma cutter in it
Who is he ?
Nathan Drake (Uncharted 3) and Lightning (Final Fantasy 13)
Isaac Clarke (Dead Space), Agent 47 (Hitman), Ghost (Modern Warfare 2), Sweet Tooth (Twisted Metal)
Cole MacGrath (Infamous 2)
Joe Mauer (MLB the Show)
Old Snake (Metal Gear Solid 4)
Chell (Portal 2)
Sackboy (Little Big Planet)
Kratos (God of War), Athena (God of War), Helghast trooper (Killzone), hidden PS Logo
Paul Phoenix (Tekken)
Little Sister (Bioshock)
Ezio Auditore (Assassin's Creed) and Ratchet(Ratchet & Clank)
Rico Velasquez (Killzone)
Hybrid Chimera (Resistance)
Who is this guy again ?