Monotouch - caching maps for offline use

Is there a way to cache map data for offline use?

we're creating a guide app that will be used in areas where there is no reception and will need to display maps in this environment

is this possible?

Cheers

w://开发者_如何学运维

This is not a MapKit based solution but route-me is a tile based map widget that has a file based cache.

Adam