I think this can only improve the consoles appeal to me personally tbh.
I feel the weakest area of the consoles atm is the control method for FPS games. Ok, you may say well pads work, which yes they do, but they are utterly poor at it, you can possibly get away with it for games such as COD3 and GR:AW as they are pretty slowish, however "fast-twitch" reaction shooters, like say Quake and UT it just doesn't cut the mustard.
What the hell is wrong with this? I mean Gord's comment (you surprise me on this, even go as far as calling you a dirty traitor

) Take Pro Evo on the PC, people use PS2 pads, XBOX pads, keyboards, other 3rd party pads, no complaints can be heard, not everyone is the same, but it still works fine. So why not let FPS gamers on the consoles have a choice of controls.
The excuse of it not being a fair playing field is silly, some guys are always going to be better than others, and tbh it's like going into an F1 race with a mini when playing an FPS with a pad which is certainly no designed for fast and accurate aiming.
If i went to play on a console i would get frustrated with having to use a pad for FPS and just wouldn't play as it takes so much bloody effort.
I'm all for this, and if it works, then i will happily save and purchase a 360 in the new year. If it doesn't work i will be sticking with the pc for the forseeable future.