i did happen to ask him about that recently unfortunately they dont do that....try looking around on the site there might be a thread on it to give you more of an idea about pricing and places that do it etc.... eventually i think i would like to have a spare on that. i was thinking of rarely using my remote key and just mostly trust in my non remote key ...here is some info on one of the threads here.......
http://986forum.com/forums/general-discussions/37212-how-program-new-key-boxter.html