A pretty simple/dumb Objective-C pair object.

Pair.m

@interface Pair : NSObject {
@public
        id obj1;
        id obj2;
}
- (id)initWithObjects:(id)object, ...;
@end

@implementation Pair
- (id)initWithObjects:(id)object, ... {
        if ((self = [super init])) {
                va_list args;
                va_start(args, object);
                
                obj1 = [object retain];
                obj2 = [va_arg(args, id) retain];
                va_end(args);
        }

        return self;
}

- (void)dealloc {
        [obj1 release];
        [obj2 release];

        [super dealloc];
}
@end

/* A simple Obj-C pair!

Initialization: Pair *x = [[Pair alloc] initWithObjects:obj1, obj2];
Member Getting: x->obj1; x->obj2;
Member setting: x->obj1 = [obj1 retain]; x->obj2 = [obj2 retain];
Releasing: [x release]; */