The PlayStation Vita started out slow with sales below their goal in the Japanese market. Now that the system is selling worldwide, they finally reached the 1 million mark. It's a start but Sony has a long way to go to catch up with the Nintendo 3DS.
During the first two days after the launch, 321,400 Vitas were sold. In comparison, Nintendo managed to move 371,000 3DS's in two days after launch.
The Vita had a bad start that was similar to the 3DS in terms of sales. Nintendo managed to spring back. But then again it is Nintendo. Sony will have to think of something to moving the systems faster. A price drop might help.
On top of selling a million units, Sony announced that the software for the Vita reached 2 million sales. That's includes both retail units and what was sold on PSN. Combining retail sales with DLC sales indicate a sign of weakness. Downloadable content is often cheaper than a retail game.
Sony has a lot of work to do in order for the PlayStation Vita to catch up to the 3DS. The PSP clearly lost to the Nintendo DS in round one. Sony will need some luck to be able to beat its rival or at least close the gap.