Richard Kenneth Eng. I never use Smalltalk but the creator of ObjC was so inspired by it and I assume it might be the user experience of Smalltalk is way better compare to C++ and Java. Since I had used ObjC before and the amount of effort to maintain ObjC codes is so much less compares to C++ or Java. Care to share your experience on that?

Ok, I will read the url. Thanks for mentioning it.