Dunno, but the "piano shootout" page is still up that has several different piano emulations, including the Roland G1000, in a side-by-side comparison here:
http://www.svpworld.com/tyrospiano.htm

Once I get my PLG150-AP I'll add it to this shootout for comparison. It would be nice if someone with access to a Roland Fantom would participate in the shootout also.