Rip Squilliam a new one if you like guys but although he never specifically said it in his OP there is some sense in a common console theme. Assuming his idealistic vision would be a unified console design that any company could manufacture then there would be some huge benefits. One immediate improvement is the saving to the environment through less waste as people would only need to buy one device and ultimately dispose of when finished.
This unified console would also encourage more gamers with a interface that is completely familiar to everyone. A lot of older potential gamers are put off because they refuse to learn to use new controllers everytime a console is released. The Wii changed all this with its seemingly simpler and more natural input method (of course its anything but simple in real world terms).
This idealistic vision in my opinion could be better for gamers but the biggest obstacle is overcoming the gaming community. The simple fact is there will always be competition and bickering with some companies undercutting prices, etc even if you could get them to agree to a standardised system.
Your post does suggest thinking outside of the box Squilliam, it's just not likely to happen in the current very capitalist world we live in (or at least some of us live in
).







