@ OP : I think a better way for Sony to win the generation is to take all the old "phat" model PS3's that were stacked to the rafters in box stores and warehouses nationwide prior to slim release, turn them into the worlds largest clustered computing array.... and use it to predict winning lottery numbers and currency exchange fluctuations. After Sony tallies up a couple billion$ using this method, they should switch to using RPG's wonderfull suggestion of packing one in every happy meal. Now, it still might not work... after all, I am pretty sure Wii is more popular these days than happy meals, but it would at least put them in the running.
On a more serious note, I do not want a console like a Wii... I had a Wii, I gave it away to a family member. It now could be renamed " Wii Fit machine "
Wii sells so much, because its a different market. Anyone else trying to emulate the Wii would just fail miserably, simply because the casuals and ultra casuals are by definition the least likely group to buy two seperate consoles. Why would anyone want a Wii imitator when they already have a Wii? Or at best their casual gamign friends who introduce them to gaming have a Wii. Competing with Wii by making a cheap casual system is like competing with Coke and Pepsi by making a new Cola.