Insanity. Beautiful, delicious insanity.
I gotta say, I'm loving this ride. There are CEOs screaming at the top of their lungs right now, and then weeping quietly.
Companies like EA, etc... had basically ZERO planned for Wii when it was first announced. "Revolution? Nintendo's gonna get third, no need to make anything for it." And they signed all the big budget games to the "safe bet" platforms, 360 and PS3.
Over the next year you are going to see a lot of big games heading to the Wii. Stuff like Mad World is just a taste. Companies are going to be leaping onto Wii and Wii Ware. The next-next Dragon Quest (after the DS one) will probably be announced for the Wii. We've already seen that Monster Hunter has been. With sales of Wii Guitar Hero, Activision is going to be focusing pretty heavily on making sure that cow keeps producing milk. EA already jumped on board with a pretty big-budget title in Boom Blox, and we'll definitely keep seeing more from them.
At this point, ignoring Nintendo platforms is just leaving money on the table.