Sure you can order new Pokewalkers: http://store.nintendo.com/webapp/wcs/stores/servlet/ProductDisplay?productId=166708¤cy=USD&catalogId=10001&tranId=0&lastAction=setCurr&storeId=10001&languageId=-1&categoryId=58694&ddkey=http:SetCurrencyPreference
But USA/Canadian Residents only. :-/ So no chance to order one for me. I'm from germany.
But I'm gonna ask Nintendo Germany if they, send me a Pokewalker. Because I don't want to own the game.