iPhoneVersionChecker.m

#import <sys/utsname.h>

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
    NSLog(@"%@", [self machineName]);
}

- (NSString *)machineName
{
    struct utsname systemInfo;
    uname(&systemInfo);
    
    return [NSString stringWithCString:systemInfo.machine
                              encoding:NSUTF8StringEncoding];
}

@end