At 01min 51sec Brian said:

"...And better linking to the web in terms of communication - taking in from within Messenger [client] and having it on the web. You can have some sort of way to go back to look at previous topics of conversation in Messenger, and vice versa [like] getting information from the web and back into Messenger. So that it's a real seemless experience between the two...."

I'd be interested to know how this can/will be done - will Messenger conversation history be available on the web [and vice versa]?

@damaster:

That really would be very handy! I don't even understand why none of the friends I know actually use the feature of saving thier conversation history! :S Especially the part to see the last part of the last conversation in the new conversation window - again, very handy!