If this turns out to be an entertaining, quality game, I'm buying a PS3 for it. Not kidding.
I loved Endless Ocean, even though it had alot of flaws... Afrika is looking great.
Aqua should be quite a dive as well.
So far, what I've seen on the 360 are alot of mainstream titles (shooters in particular) that don't take any risks.
Endless Ocean had quite some depth to it, despite being less of a game and more of an experience. I just hope that Aqua and Afrika are even deeper and richer in content, so they won't be dull "Casual market" games.