Adding up its second-quarter results, Sony reports 3.2 million sales, a 1.1 million increase over the same quarter a year earlier. The same period also saw a signficant increase in game sales for the PS3 console.

Meanwhile, Sony’s little-engine-that-could, the PlayStation 2, is finally showing signs of decline. The system has been selling comparably to the PS3, as well as other current-generation competitors, the Xbox 360 and Nintendo Wii. Now, the PS2 has declined to 1.9 million in sales with only about half of the total games sold compared to the previous year.

The PSP also had a bit of a decline, dropping from 3.2 million to 3 million in sales, though game sales are up.

Sony bet heavily on the long-term adoption of its technically-superior PS3 console when it realased the device in November 2006. The console had to compete with the Xbox 360, which was out a year earlier, and Nintendo Wii–both of which had lower price-tags and comparable, or arguably superior, game libraries.

Adoption of the PS3 has been slower than Sony expected, but if sales continue to rise there’s hope for the PS3 yet.

The announcement comes alongside news that Sony plans to take on Latin America by releasing its PS3, PS2 and PSP systems there.

The company’s phased approach involves eventual expansion to thirteen countries in the area, beginning with Argentina, Chile, Columbia and Peru in the first phase.  Sony also plans to set up a localized PlayStation Network in the area.

Ian Jackson, VP of sales at SCEA, has high hopes for the region.  “Long-term it has a very good opportunity to be bigger for SCEA than the Canadian market was,” he says.