For this Artoo, Hasbro has made him a bit smaller than his previous releases... which is great, because he was too big before.
One of his blue 'arms' on the front of his torso opens up to flip out a silver manipulator-arm. He also comes with a drink tray (from jabba's Sail Barge) with a dispenser that plugs into the top of his head, and a bunch of removeable cups.
Artoo also has a periscope and Luke's lightsaber hilt that, when plugged into an open panel on his dome, drops his third leg down. This is the only feature I'm not fond of... the periscope has to stay in his head when the third leg is down, preventint his head from turning. If you take it out, there's a hole in the top of his head.
I'm going to figure out a way to work around it though... because he's become my favorite, and is my go-to Artoo figure.