On the other hand, Webkit is great software, and it's now integrated into Qt as well. My guess is that it will replace KHTML entirely, rather than merging with it.
I agree that Apple could have been more cooperative, but in the end, we have a great, free rendering engine (and a javascript debugger); not solely thanks to Apple, of course, but I feel they deserve some credit for being the driving force behing KHTML's rise from obscurity[1] in the form of Webkit.
[1] I have no data to back up my claim about KHTML being obscure, but I honestly can't think of it as anything other than "the Konqueror engine".