Apple cult leader Steve Jobs has hit back at Eric Schmidt over the Google boss' repeated claims that Google is "open" and Apple is "closed." During a surprise appearance on Apple's quarterly earnings call on Monday afternoon ? "I couldn't help dropping by for our first $20bn quarter" ? Jobs called Schmidt's characterization "disingenuous," a "smokescreen" meant to hide the real issues surrounding the companies' dueling mobile platforms. When you compare Apple's iOS to Google's Android, Jobs said, the question is not: Who's open and who's closed? The question is: Who's "fragmented" and who's "integrated"?