small44 on 19 February 2013
Based to rumour about ps4 i doubt they will not convince investors, ps4 will not be that expensive, it`s able to connect to mobile device and it will have cloud integration.
Sony will also probably show some impressive tech demos.
PS4 - over 100 millions let's say 120m
Xbox One - 70m
Wii U - 25m
Vita - 15m if it will not get Final Fantasy Kingdoms Heart and Monster Hunter 20m otherwise
3DS - 80m
