i didnt read the full article but from my guess it does look like it'll involve signals. most likely through bluetooth or wifi (or both) so that means not compatible for the 360 controllers. this'll will go good for the ps3 controllers though ^^. i dont mind charging it through usb when the batteries or low but removing the use of cables 100% is fine by me. lets just hope it doesnt involve buying 'accessories' like the power mat, BS.
Not sure if the 360 controllers are compatible with the Power Mat, but the ps3 controllers are since it's bluetooth and usb supportive but it involves buying accessories (for the power mat, not the ps3 controller).