Scott Forstall, Apple’s Senior Vice President of iOS Software, has joined Twitter. While Forstall has yet to post a single tweet, he already has 16,987 followers, but is following only one person himself: Conan O’Brien. Coincidentally, O’Brien’s latest tweet as of this writing involves the iPhone 4. It says, “I found a huge design flaw in my new iPhone. People get angry when I talk on it during a funeral.” It’s unclear whether Forstall’s account was created solely for his personal use, or if it represents the beginning of a larger push by Apple into social media, perhaps in an effort to battle negative press regarding the iPhone 4’s reception issues.