Yeah I have, I have one fitted on my 2005 One. Looks fantastic, I think the little 'segments'? are slightly bigger but still looks pretty good in my poinion!
Was about £65, can't remember where from, the bottom section was harder to fit, the bumper was pretty simple to take off, teh to get the chrome grille off was a nightmare, only because I didn't realise there was double-sided sticky tape in there. Took about 15 minutes to get off, the top (bonnet) section was easy. The new one, rather than being held in place with nuts, it's glued, i put a nut on the outside two fixings just for extra strength.