I think it's likely, the PS3 was doing about as well as the 360 before all this recent pricedrop and 40 gig stuff. Consdiering that as Tears mentioned above 360 sold 2.8 the PS3 should be able to do close to that.
Then again maybe not, since the PS3 does have two strong competitors... and the US economy being weaker. Either way if the 360 reaches 16 the PS3 should reach 8.