Speaking to GI, new Sony Worldwide Studios president Shuhei Yoshida has put lacklustre third-party support in PS3's launch year down to the fact that developers tried to port 360 games over to the platform and didn't do their sums properly.
"They must have been planning, thinking they have enough time, to port the second game to PS3 and release at the same time with the same quality," he said.
"So they massively underestimated the effort that was needed to re-architect the game to properly take advantage of the PS3's multi-core architecture."
Yoshida added: "But it's impossible to bring the level of support that we feel is important for the PlayStation 3 platform without the third parties' continued support. That was the miscalculation by both us, and from third parties."
More through the link. The full interview's here.