Hey, look at that. We actually noticed it this morning but it didn't register in our sleepy heads, but Bing's Social Search "Preview" is now available for those luckily enough to reside in the US. No, we're not sure why it's only US but perhaps it's more of a rollout thing to work out the bugs and quirks.
Anyway, if you head on over to bing.com you can hit the "Preview" button and you'll see the new login near the upper right of the screen. You now have the option to login with your Live ID credentials (we lost all of our Bing reward points when we created a new ID) and you can also login with Facebook. No Twitter or G+ just yet which is a bit of a shame, well at least for the former.
We haven't see the new pane layout just yet but perhaps it's just us (we're not big Facebook users) Our new layout is now live including the social bar to the right. You can see more on Bing's Social Search features here on their new sub-site: http://social.discoverbing.com/.
Thanks, ArtSooby, for the tip