Lord Error said:I'm pretty sure Superstardust in 3D outputs full 720p frames at 120hz, keeping the game running at the 60FPS. At least that's what the developers of the game were saying and guys from Digital Foundry were seeing. Wipeout running in 3D is 30FPS so clue if it needs to output 120Hz or not.
I can only speculate.
If a game developer is using a checkerboard format, they wouldn't be technically saying something misleading by claiming 720p@120fps is full resolution.
HDMI 1.3 & 1.4 have the same bandwidth. Sony has to work with the bandwidth given.
Displayport 1.2 has a lot more bandwidth, but that really isn't standard for TVs. You can't fault Sony in any way if they are using checkerboard formats. Anyway high frame rates are cruical for stereo 3d.