MapBox for iOS SDK を使って、OpenStreetMap を iPhone で表示する ref: http://qiita.com/hal_sk/items/e0b3ca53303976bc0235

file0.txt

platform :ios, '5.0'
pod 'MapBox'

file1.txt

pod install

GRViewController.m

//
//  GRViewController.m
//  MapBoxSample
//
//  Created by Haruyuki Seki on 12/9/13.
//  Copyright (c) 2013 Georepublic. All rights reserved.
//

#import "GRViewController.h"
#import <MapBox/MapBox.h> 

@interface GRViewController ()
{
RMMapView *_mapView;
}
@end

@implementation GRViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    RMMapBoxSource *tileSource = [[RMMapBoxSource alloc] initWithMapID:@"メモしておいた Map ID"];
    _mapView = [[RMMapView alloc] initWithFrame:self.view.bounds andTilesource:tileSource];
    [_mapView setZoom:5];
    [self.view addSubview:_mapView];

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

objective-c

//
//  GRViewController.m
//  MapBoxSample
//
//  Created by Haruyuki Seki on 12/9/13.
//  Copyright (c) 2013 Georepublic. All rights reserved.
//

#import "GRViewController.h"
#import <MapBox/MapBox.h> 

@interface GRViewController ()
{
RMMapView *_mapView;
}
@end

@implementation GRViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    RMMapBoxSource *tileSource = [[RMMapBoxSource alloc] initWithMapID:@"メモしておいた Map ID"];
    _mapView = [[RMMapView alloc] initWithFrame:self.view.bounds andTilesource:tileSource];
    [_mapView setZoom:5];
    [self.view addSubview:_mapView];

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end