A couple of other things to note on this one:
1) There are still about the same amount of rumors out there (you should see our inbox), there just isn't the formal announcements from GW anymore.
2) This is the summer season which is traditionally the slow time when not a whole lot is released as most folks are out and about with vacations and such. Things pick up around mid August.
Personally, I think the worst decision on GW's part was the ending of the black boxes going to retailers. If the goal is to get folks going into stores, you have to give the stores something to draw in customers. Also, the lack of ability to forecast what is coming more than 10 days out is severely hampering retailers ability to gauge interest, plan events, and keep their local communities focussed on the "next big thing".
This policy change of course isn't happening in a vacuum. You can bet that the other big companies in the industry are watching very carefully, and their marketing departments are planning on how to best use this misstep on GW's part to maximize their sales and marketshare.
Believe me when I say that no one could be more pleased with GW's latest policy change than their competetors...