Xbox Live group marketing manager Aaron Greenberg has criticised Sony's online service for the PS3, calling it yet another knockoff.

Speaking to GameSpot at Sony's recent Gamers Day event, Greenberg said that Microsoft is flattered that they have "created a service that is breeding yet another knockoff."

Greenberg was questioned about the future of the Xbox Live subscription model, especially given that Sony's PS3 offering will be free of charge, but wasn't forthcoming in future plans. "We will compete with them in the same way we have for the last four years by out-innovating and focusing on community, value, and the content that gamers want," said Greenberg. "They offered basic free matchmaking on the PS2, and from what we can tell, their online story has not evolved much."

Speaking more specifically about Xbox Live, he promised that details of the upcoming autumn dashboard update will be coming "soon", and also hinted that further updates to the Xbox backwards compatibility software would be released soon - although did not offer any concrete info on the subject.

One of the new features to be included in the autumn update is the ability to output in 1080p, both for games and video content, including the HD DVD add-on. We'll bring you full details of the update as and when the information comes to light.