Have I noticed it late or is it really a new feature of POB or have I missed it all together?
While I was browsing POB today, I just happened to click on this chat icon by mistake and suddenly a window opened and I was like WOW!
It's like a proper chat window where you can interact with people using text and emoticons. I happened to see around 35 unread messages but I was not tagged in any of them so I don't know why they appeared to me. I tagged 3 of my friends, 
I would really appreciate if any of you can throw some light on this feature, when was this introduced and how it really works. I would love to use it to engage more with people.
Also, I think it's a great feature and if used properly can really help improve the engagement on the community.