Custom Map iPhone -

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i trying figure out how create custom map following:

http://itunes.apple.com/us/app/mall-book-california/id342584415?mt=8

http://www.macworld.com/appguide/app.html?id=541350&expand=false

i don't know start from, use uiwebview or mapkit? appreciated.


what did in our app use uiimageview on uiscrollview. need take screenshot of object map on google-map , precisely draw overlay on it. need take top left coordinate , bottom right coordinate of screenshot took map. put overlay image inside imageview, image view on scrollview, , scale coordinate system on scrollview coordinates took map. can precisely plot poi-s on overlay. note: first thing did overlaid g-map custom image view slow when scrolled, don't try it. luck coding.

[edit] take large screenshot of area on google map http://www.metacafe.com/watch/1073912/google_maps_hack_how_to_save_large_maps/


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