Developers like horse power.
Well, Pale, they certainly have had a funny way of showing it for the past 15 or so years!
Like it or not, they will always PREFER to make games for higher end systems.
Again, this is historically inaccurate too. While a lot of developers praised the Cube, including Yu Suzuki and John Carmack, who even said he could get a better looking version of Doom 3 running on the Cube as opposed to Xbox, none of that resulted in actual PRODUCTS. Doom 3 was never released on Cube. Shenmue inexplicably went to the Xbox to die a slow, painful death like most Sega properties.
And what about Square Enix? They made 1 game for something that wasn't the PS2 last generation. All the rest, including big names of all sorts, were PS2, the decidedly weakest of all of them. Namco too. Even though Tales of Symphonia was the best selling Tales game of ALL TIME, and STILL IS., Namco suddenly decided graphics weren't very important and announced 21947812389460 Tales games for PS2, including a port of the GC game in Japan. Contrast this with the new Flop-in-the-making, waste-of-time 360 Tales and The Wii Tales game having to be bumped up from a SPINOFF that they originally planned it to be.
But suddenly, it's all about graphics. And I do mean suddenly. Like, within six months. Suddenly, it's all about Game Engines and Physics engines. Quite suddenly. And then subsequently it is suddenly about which games are "games" and which games are "nongames." And then suddenly third parties, who have been denying Nintendo support for one and a half DECADES based on userbase and userbase alone, suddenly talk about demographics and nongamers and tardcore honglime gamers and all this crap ancillary to the actual making of games.
The gamers have made their choice. Wii. And the third parties are trying to veto that choice. An adequate response would be to just buy all the consoles. It'd be nice if that was an affordable option, but all the consoles still cost too much for the average person, save one. So when the market leader gets screwed out of major games because of behind the scenes dealings, the gamers actually lose, despite what the gilded editors at IGN and Gamespot would have you believe.