Microsoft bigwig Aaron Greenberg has attacked Sony for what he sees as a failure to deliver on promises.
Among his targets were Killzone 2, PlayStation Home, PSN functionality, 1080p support, Blu-ray, Sixaxis and rumble.
"We have been fighting Sony's promises from the day we entered the market. Three years ago at E3 they showed what PS3 games would supposedly look like with the Killzone 2 video, that we are now learning will ship four years later. That means that we will have shipped Gears of War and Gears of War 2 before they can even get Killzone out the door," Greenberg told Destructoid.
"Think back to GDC 2007 when Sony promised to leap ahead in online with the Sony Home unveil. Here we are two years later and multiple delays for a product that has appears to have little to no buzz. Where are the achievements? The friends list integration across all games? Where is the long-promised video store?
"Where are all the other products using and networking with their Cell chip? How come Blu-ray did not result in better games? What happened with Sixaxis and rumble? Where is the complete 1080p game library we were promised? If Blu-ray, as they said, would be such a catalyst to PS3 console sales, then why have PS3 sales over the past couple months not seen any lift since the format victory?" he added.
The reality for Greenberg is that the Xbox 360 "is leading this generation" because it has sold more consoles, has more games and exclusives as well as "the leading online service and community". Unsurprisingly he's confident Xbox 360 will extend "its lead" over PS3 this year.
Greenberg says Microsoft has a 5 million unit lead over Sony around the world. That's double the PS3 in the US, and one million more in Europe, which, er, is not what Sony Europe boss David Reeves said earlier this week.
"The days of Sony snowing the consumers and the press are over, I think the pressure is now really on them more than ever to deliver on all of these promises," concluded Greenberg.