[citation][nom]schmich[/nom]On the PS3, 1080p games are changed to 720p in 3D mode.[/citation]
Actually, save for sports titles, very few PS3 games run in 1080p. Virtually all top-shelf titles, from the Uncharted series, to GTA IV to MGS4, all run in 720p.
And if I understand Sony's firmware solution correctly, they merely halve the horizontal resolution; so while the default 2D resolution is 1280x720, when in 3D mode it instead gets the equivalent of 640x720, without necessitating any difference in refresh rate. (though as I recall, the simple calculations to get what is basically two view angles does slightly hurt the framerate)
[citation][nom]hannibal[/nom]Allso consoles are from pre dx9 period,[/citation]
This is very true... If a 3D solution can't work with DirectX 9.0c on the PC, then it certainly wouldn't work on the Xbox 360, which actually falls a tad short on a few specifications for shader model 3.0. (hower, it's close enough)