Despite Gabe Newell declaring that Portal 2 will be better on PS3 than 360 last week (despite once calling the console a “waste of time”), Valve have made it clear that the supposed “better-ments” will not include 3D or Move support.
Talking to CVG yesterday, a Valve rep stated that there are no plans “right now” to include either piece of PS3 tech in the hotly-anticipated title.
There may be some hope in the “not now”, however: possibly a patch or update post-launch?