The figure was revealed in a blog post by Yusuf Mehdi, chief marketing officer at Microsoft's interactive entertainment division. Mehdi, a recent recruit, claims sales have grown each year, and that Xbox 360 enjoys a 47 per cent share of the current-generation console market.
The past year, however, has heralded the system's transition from a pure games console to a multimedia device, and it now boasts more than 200,000 movies and TV shows in its catalogue. The coming year, Mehdi says, will see the Xbox 360 change still further.
"To date, our success with Xbox has been led by a box in the living room," he writes. "Moving forward, Xbox will go beyond the box to reach all new families of devices. Just as Xbox has grown to mean more than games, it also is more than just a console.
"This year, Xbox becomes the premium entertainment service for Microsoft. Whether on your PC, tablet, TV or phone, Xbox will be a gateway to the best music and video, your favourite games, and instant access to your friends.
"You’ll see the first of that next week at E3 where we will showcase the very best of Xbox. We’ll unveil new games, show new ways to enjoy the entertainment you love and, as always, we’ll have a few surprises to share."
Microsoft's E3 conference kicks off at 6pm UK time next Monday, June 4, and we'll be covering it as it happens, with news, tweets, and a live stream right here on Edge Online.