Personally I feel it's kicking a dead horse as the idea has been done over and over again. However on it's facebook page Robert Hallock (chief technical marketing AMD) is making a case for a standardization of external graphics cards.

The idea is that you can hook an external graphics card into a laptop. So if you are traveling, you do not need to carry arround the external GPU, but at home you could plug it in to play games. Let's just call this port external PCI-Express.

Hallock:

Alright, let's have some Real Talk about gaming on the go. Gaming notebooks are great for gaming, but nobody in their right mind wants to carry one all the time. Ultrathin notebooks are awesome to carry, but nobody in their right mind would confuse one for a gaming notebook. 

But there's still a HUGE appetite for thin notebooks that can game. I also bet there's a bunch of gamers out there who, as they get into their 30s and 40s, wouldn't mind condensing their entire computing life down into one device that does it all. I ALSO bet that some people wouldn't mind giving up an mITX LAN rig if their notebook had the potential to serve that role with gusto.

External GPUs are the answer. External GPUs with standardized connectors, cables, drivers, plug'n'play, OS support, etc. 

More info very soon.

It is not the first time AMD is attempting to do something like this, back in 2008/2009 we have already seen the ATi XGP, or ATI eXternal Graphics Platform (graphics booster). Which back then failed substantially. But sure, to get an open standard for this would give the concept more chance of succeeding this round.

If you want to have a nice flashback into the past, read our (pretty old) article about that right here.