Possibly the most exciting to happen in Facebook for a while.
Mike Butcher on TechCrunch UK reveals that an IM client that works inside Facebook will finally launch this Friday.
Could this kill the likes of AIM or MSN?
The chances are no, clearly, but surely a lot of people will be tempted to simply message within Facebook, rather than having to bother loading up a specific messaging service, especially, if they have friends on more than one already.
A lot of people already do their socialising within Facebook – this will simply encourage people to do it even more.