contributor roles and specific pages

Hi All,

Had a question about whether it’s possible to have certain contributors have access to editing specifically assigned pages. In a sense I guess this would make it sort of wiki-ish, with the difference that it’s (a) your wordpress blog that’s being edited — no crappy wiki styling!, and (B) public, as opposed to wikipress which, as far as I can tell, is primarily for admin users…

Any ideas? If this doesn’t exist already, is there a chance that it might down the road?