Actually, in my debate on which next-gen system to get, PSo was my mind changer.  I have over 330 hours of play, and 150 is offline.  I just love everything about the game, especially the music.  Is there a soundtrack?  Anyway, Nintendo recently purchased a giant MMORPG server, which i suppose tells us somehting doesn't it.  I do think we will see some more online games, i do they think they will be grossly popular, but I know Nintendo is allready worrying about the next system.  So any games we will get online will probably be to see what the audience wants.  I belive the next gen system will use online like the GBA almost.  The things they could do with an Internet-Console-Portable connection are limitless.  But, time will tell.
And don't mind people like Overlord, He is just desperate for attention, Father didn't hug him enough or something.