While a "Holiday 2011" release date was paraded around the system's reveal yesterday, SCEA gaffer Jack Tretton admits a worlwide launch will be "difficult".

"I know that's rather ambiguous, and that's for a reason," Tretton told Engadget. "I think our goal is always to launch holidays when the majority of sales are done. You want to have a worldwide simultaneous launch. Having said that, this'll be our sixth platform launch, and it's very difficult to have the quantities to be able to launch on a worldwide basis on the same date. I think our goal is, we would get at least one territory out by the end of holiday 2011."

While Tretton is probably just trying to temper expectations, we can't help but feel a little disappointed at the prospect of not owning an NGP this year. We had high hopes we'd be playing the latest Wipeout game this Christmas. Fingers crossed Sony can suss out the production hurdles and keep the launch dates tightly knitted together.