Sony has generally remained schtum on the success of the Vita, which launched in December last year.
The last we heard was in February, where it announced that 1.2 million units had been shifted.
The slow number of sales is bad news for the console, which is up against Nintendo's 3DS handheld - itself having shipped 6.68 million units at the same point in its life cycle.
Following criticism that it almost totally ignored the Vita during this year’s E3, Sony very much focused on the handheld during its Gamescom press conference last Tuesday.
Assassin’s Creed III: Liberation, LittleBigPlanet and new IP Tearaway were among the big names unveiled to be heading to the Vita in the coming months.
However, Sony recently announced that the console will not see a price cut in 2012. Considering this latest news, we'd suggest it reconsider.