I'm not sure that I like this, at all. I had never even heard of this company before and had to look them up, they appear to be a major player in MMO and cell phone gaming in Japan? I think the best thing about Suda51 isn't even necessarily the quality of his games, it's that he approaches development from a punk rock, we're Grasshopper and we're going to do whatever the heck we want attitude, which he has (somehow) been able to get away with for awhile now as an independent studio. Losing independence will have to affect that in some ways, and losing it to a company that primarily deals in MMOs and cell phone games doesn't seem like the best way to keep Suda51 and Grasshopper cranking out their mad brand of awesomeness.
On the flip side, GungHo bought out Game Arts a few years back and they are still doing console / handheld games, so maybe I'm worrying prematurely. I just don't want to see Suda51 making pay-to-play phone games for the rest of his career.
Source:
GungHo Online EntertainmentURL to share (right click and copy)