@JRPG: Not quite. PS2 would also need tons of killer apps to support the motion control. Besides, isn't PS3 in practice a PS2 with motion controls.
Basically you presented the fallacious mindset a lot of publishers seems to have. Since Wiis controls are about interface, we are talking about games that more people can play, not that the purpose would be to tack on the motion controls for the purpose of motion controls, or that anything with motion controls would sell, because that "anything" isn't necessarily what people want to play. You'd need games that are specifically designed around the control method and are actually good.
If Sony would just introduce a PS2 with motion controls, they'd be starting with installed base of 0.
Ei Kiinasti.
Eikä Japanisti.
Vaan pannaan jalalla koreasti.
Nintendo games sell only on Nintendo system.
