Open Google Map and point to a location specified by its coordinates

CLLocationCoordinate2D loc = [newLocation coordinate];

latitude.text = [NSString stringWithFormat: @"%f", loc.latitude];
longitude.text = [NSString stringWithFormat: @"%f", loc.longitude];
altitude.text = [NSString stringWithFormat: @"%f", newLocation.altitude];

NSString *mapUrl = [NSString stringWithFormat: @"http://maps.google.com/maps?q=%f,%f", loc.latitude, loc.longitude];
NSURL *url = [NSURL URLWithString:mapUrl];
[[UIApplication sharedApplication] openURL:url];

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NSString *name = @"thai";

NSString *latlong = @”-33.874559,151.219575″;

NSString *url = [NSString stringWithFormat: @"http://maps.google.com/maps?q=%@&mrt=yp&ll=%@",
[name stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],
[latlong stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];

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[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://maps.google.com/maps?z=8"]];

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[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://maps.google.com/maps?q=http://objective-d.com/sample.kml"]];