Ever since Sony announced the PS3 slim back in August at Gamescom in Cologne, Germany, the console manufacturer and consumer electronics giant has been on quite a roll. Following the release of the announced slimmer, lighter version of the PS3, came the PSPgo launch, and Uncharted 2: Among Thieves releasing to much acclaim. It seems as though nothing can slow Sony down.

From the moment the PS3 slim was released on September 1, 2009 at a lower price point of $299, sales immediately skyrocketed. So much so, Microsoft’s Aaron Greenberg is even expecting for the PlayStation 3 to top the Xbox 360 when September’s NPD results come in.

While speaking with Game Informer, Aaron Greenberg, Director of Product Management for Xbox 360 and Xbox Live talked candidly about the sudden surge of PS3 sales. He even went as far as to admit Sony would come out on top on September console sales.

“It is not a real concern to us – in fact, I can tell you to that when NPD releases September sales… we fully expect PlayStation 3 will come in as the console with the most units sold for the month,”

Sony sold over one million of its new PS3 in just 3 weeks after its release. Even with sales that massive, Greenberg remains confident that the Xbox 360 will outsell the PS3 for not only the calender year, but for this generation of consoles.

“What I can tell you is we remain confident that Xbox 360 will not only outsell PS3 for the full calendar year, but for this entire generation.”

Confident words, when Sony is right on their tails in worldwide console sales, thanks to strong sales in both Europe and Japan. Here in North America, the PlayStation 3 still trails the Xbox 360, but if the PS3 can maintain its momentum it’s quite possible the PS3 could overtake the Xbox 360 in 2010 in worldwide sales.

Stay tuned to PlayStation LifeStyle as we’ll have the official NPD data shortly.