This one look to be pretty much the same as the previous (GX-57) but without the stand and done in slightly different colors. That still makes for a pretty awesome piece-- if the price wasn't so damned high. It's listed a Y27,300--just about 300 American dollars.
The previous version sells for just slightly more than that on the aftermarket (original retail was about $245) and this one seems to come with less.
No release date announced yet.