my_map_screen.rb

class MyMapScreen < PM::MapScreen
  title "My Map"
  start_position latitude: 35.090648651123, longitude: -82.965972900391, radius: 4
  
  def on_appear
    update_annotation_data
  end
  
  def annotation_data
    [{
      longitude: -82.965972900391,
      latitude: 35.090648651123,
      title: "Rainbow Falls",
      subtitle: "Nantahala National Forest"
    },{
      longitude: -82.966093558105,
      latitude: 35.092520895652,
      title: "Turtleback Falls",
      subtitle: "Nantahala National Forest"
    },{
      longitude: -82.95916,
      latitude: 35.07496,
      title: "Windy Falls"
    },{
      longitude: -82.943031505056,
      latitude: 35.102516828489,
      title: "Upper Bearwallow Falls",
      subtitle: "Gorges State Park"
    },{
      longitude: -82.956244328014,
      latitude: 35.085548421623,
      title: "Stairway Falls",
      subtitle: "Gorges State Park",
      your_param: "CustomWhatever"
    }, {
      longitude: -82.965972900391,
      latitude: 35.090648651123,
      title: "Rainbow Falls",
      subtitle: "Nantahala National Forest",
    }]
  end

  
end

output.sh

~/motionapps/promotion-tutorial $ ruby --version
ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-darwin12.2.0]
~/motionapps/promotion-tutorial $ motion --version
2.9
~/motionapps/promotion-tutorial $ rm Gemfile.lock 
~/motionapps/promotion-tutorial $ bundle
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Using rake (10.1.0) 
Using ProMotion (1.0.4) 
Using bundler (1.3.5) 
Your bundle is complete!
Use `bundle show [gemname]` to see where a bundled gem is installed.
~/motionapps/promotion-tutorial $ rake clean
    Delete ./build
~/motionapps/promotion-tutorial $ rake
     Build ./build/iPhoneSimulator-6.1-Development
   Compile ./app/screens/about_pro_motion_screen.rb
   Compile ./app/screens/articles_screen.rb
   Compile ./app/screens/home_screen.rb
   Compile ./app/screens/my_map_screen.rb
   Compile ./app/app_delegate.rb
    Create ./build/iPhoneSimulator-6.1-Development/promotion-tutorial.app
      Link ./build/iPhoneSimulator-6.1-Development/promotion-tutorial.app/promotion-tutorial
    Create ./build/iPhoneSimulator-6.1-Development/promotion-tutorial.app/Info.plist
    Create ./build/iPhoneSimulator-6.1-Development/promotion-tutorial.app/PkgInfo
      Copy ./resources/[email protected]
    Create ./build/iPhoneSimulator-6.1-Development/promotion-tutorial.dSYM
  Simulate ./build/iPhoneSimulator-6.1-Development/promotion-tutorial.app
(main)> ProMotion::Logger: [ERROR] You must add MapKit and CoreLocation to your project's frameworks in the Rakefile.
2013-10-17 16:11:25.843 promotion-tutorial[23536:c07]  52:in `set_start_position:': uninitialized constant ProMotion::MapScreenModule::CLLocationCoordinate2D (NameError)