Only thing I can think of with EA is that they are waiting to show their games with two controllers.
Well thats what I said, pointing out that during the conference Nintendo specifically said they ONLY wanted to show games that used a single gamepad. And I got laughed at.
People are still sore that Nintendo didnt show some bigger titles during E3, but I think they did a smart thing. They are giving smaller titles, new franchises, like project P-100, a chance to get noticed. They also want third party titles to sell well. Its not like the console has launched and we are in the middle of a game drought.
The other thing we shouldn't forget, some titles might not have been shown due to external situations. We have rumors that Eternal Darkness2 was being worked on. But then got canceled due to financial and legal problems. This could have been a game Nintendo wanted to show off. The same thing happened with the Wii the year they had that god awe-full conference. Later we heard that Factor5 was supposed to show some titles, but because of legal issues, it all collapsed. And then we got a small glimpse of that Factor5 engine... Imagine if Factor5 did have that game ready for the Wii, things might be a little different now.
Anyway, I think Nintendo is just pacing themselves. Sony and MS have not shown anything that worries Nintendo, so they have time to reveal features and games in incremental stages.