While some of So.cl may look familiar to Bing users (or those who have read about the recent Bing redesign), and some of the features may one day make their way to Bing, So.cl currently has no impact on Bing's current social features.
Duane Forrester answered a user question on Twitter:
@DuaneForrester will this so.cl thing impact the social graph of Bing search at all?
It is nice to see where Bing's social efforts are focused.
It's just been a Duane Forrester kind of day. We also looked at some advice he gave regarding Google's Penguin and Panda updates in a different article, as well as his suggestion that you should be using Pinterest.
On that note, its interesting that Pinterest isn't mentioned on Forrester's list of Bing's social focal points. Perhaps he was hinting at the future. A Pinterest-based image search integration could be cool.