http://www.metropcs.com/metro/promotions/promotionsDetail.jsp?promoId=promo150010Not sure if they always have this , or this is a special...But, it says its only on 3 select phones...My question is : is it at all possible to use a Sprint/Verizon phone with them ? (i think they use the same technology)If so, can i switch after activating with their phone & still receive the offer?thanks