A NSString category that allows spacing between characters.

NSString+Spacing.h

@interface NSString (Spacing)
- (NSString *)stringWithSpacing:(int)spacing;
- (NSString *)stringWithSpacing:(int)spacing andSpacingString:(NSString *)spacingString;
@end

@implementation NSString (Spacing)
- (NSString *)stringWithSpacing:(int)spacing {
    return [self stringWithSpacing:spacing andSpacingString:@" "];
}

- (NSString *)stringWithSpacing:(int)spacing andSpacingString:(NSString *)spacingString {
    if (spacing == 0) return self;
    
    int length = [self length];
    NSMutableString *string = [[NSMutableString alloc] initWithCapacity:(length*(spacing+1)-spacing)];
    
    for (int i=0; i<length; i++) {
        [string appendString:[NSString stringWithFormat:@"%c", [self characterAtIndex:i]]];
        if (i<length-1) {
            for (int s=0; s<spacing; s++) {
                [string appendString:spacingString];
            }
        }
    }
    
    return [string autorelease];
}
@end