According to a report on CNET News today, Apple may be planning to abandon the open-source rendering engine KHTML in favor of its own (WebCore) for Safari. The story states that a “leading Apple browser developer suggested that architects of the KHTML rendering engine–the heart of a browser–consider abandoning the KHTML code base, or ‘tree,’ in favor of Apple’s version, called WebCore. KHTML was originally written to work on top of KDE (the K Desktop Environment), an interface for Linux and Unix operating systems.” Apparently KHTML developers are unhappy with the relationship they have with Apple, calling it a “bitter failure.” Apple declined comment on the story.