I was wondering about the maps application functionality. Once I hack my touch and get the iPhone maps.app installed, do I need Wifi to access the maps or are they actually stored on my touch? That is, is there somewhere I can get a map of Toronto, Canada and have it in my Touch so I can use it in a car or would I have to go to say Google Maps on the Internet and look up the map then keep it running after I've left a Wifi hotspot? Just wondering how the maps works... Thanks for any info.