Objective-C
History of Objective C
Thursday, December 3rd, 2009
Very cool history lesson on Objective C, with the world’s largest monitor.
Objective-C Messaging
Wednesday, December 2nd, 2009
It should be noted, that due to the overhead of interpreting the messages, an initial Objective-C message takes three times as long as a C++ virtual method call. Subsequent calls are IMP cached and 50% faster than the C++ virtual method call. Pretty tight, eh?

