Complementing the limited edition chrome controller released previously (the one with the improved d-pad), Microsoft will be releasing two more of the model next month.
There'll be a red one and a blue one, to go with the existing silver model. All three will feature a chrome finish and the better d-pad, and all three will cost around USD$55.
I'm really hoping these are the next Xbox's control pads. Not the colour, necessarily, just the functionality.