Once again, the technology mediasphere is engrossed with Apple CEO Steve Jobs’ health, and the questions are ricocheting off the virtual walls: What did Apple know? When did it know it? What is it legally obliged to reveal? This latest round of speculation was prompted by a weekend Wall Street Journal report revealing that Jobs had a liver transplant in April. The WSJ did not reveal the name of its source. Also, both Reuters and CNBC reported Monday that Jobs was seen on the company’s Cupertino campus.