I am using cloud made map and everything works fine for me.
The only problem I have is that when I zoom in or zoom out of the map, the map markers are not moving with the map.
Source looks like this:
id cmTilesource =
[[[RMCloudMadeHiResMapSource alloc] initWithAccessKey:@"ABCDEF" styleNumber:78603] autorelease];
[[[RMMapContents alloc] initWithView:mapView tilesource: cmTilesource] autorelease];