Great app for offline navigation

A MUST HAVE FOR IPOD TOUCH USERS!! This app runs very effeciently and is very stable. Being able to enter a web address to load almost any map in multple image formats is great. I have deleted most of the default maps and just load the .pdf files from the public transportation agency in the area Im interested in. Being able to load multiple page files would be nice but breaking the files up into single pages works too. Thanks for making this a free app!

Update/request: an awesome feature would be a way of including GPS location information on maps. Perhaps having users creating a known point and using that to orient the rest of the map? Thanks for the nice product!

PDXFDC about Transit Maps