mike2010 - 3:31 am on Jun 9, 2012 (gmt 0)
Big companies don't list and don't care about listing their Contact Info because their too big as is. And probably don't even care about their own SEO.
But I think for most sites, it should give a minor bump for SEO.
Whether it'll ever be confirmed = I doubt it. So we just gotta keep on guessin.