An awesome box cover design, featuring the Last Shooting scene from the anime.
Special coating for all the parts. Nice ^^
The articulation isn't really the selling point here though, since it's just the same as the original kit.
All images from Yahoo!.
EDITED: a bit of update on Gundam Unicorn from SRW Hotnews:
Beam saber 'hidden' in the forearms of Unicorn! Now that's something new ^^
BTW, this is the first photo of Unicorn having some sort of action instead of the usual standing-looking-very-cool pose XD.