This is a pretty big deal for designers and developers who love dual-display setups, e.g. for looking at code and docs at the same time. Until now you had to lug around a 15" MacBook Pro to get dual external monitor support.

So where are the affordable Thunderbolt displays? Will they even exist for this generation of tech?

Wow, that looks amazing. Forgive my ignorance (I don't use external displays with my MBP), but how is this done? Does each display connect to the next display with Thunderbolt daisy chaining?

I've been running two external displays for some time on my MBP. One mini display port, one USB. The USB has a mostly negligible lag.

Do the displays have to be Thunderbolt displays? Seems really expensive.

Can the macbook pro retina handle 4 thunderbolt displays (2 on each port as with the Air) + HDMI?

Rather presumptuous to imply that developers in general care about MacBook design tweaks, isn't it?

That's why I pulled the trigger and bought mine yesterday.