Five and a half months ago, word that Steve Jobs would only work part-time as he recovered from a liver transplant would have sent investors into a selling frenzy and might have concerned Apple’s biggest customers, too, so closely linked was Apple’s charismatic co-founder and CEO to the company’s success. But now, with Jobs’ return to Apple just days away, that prospect is a lot less daunting, reports the Associated Press. It’s not yet clear how investors will take the latest news that Jobs had a liver transplant two months ago in Tennessee, according to the Wall Street Journal, and that he will likely work part-time, at least at first. But in the last few months, the company has released must-have gadgets and software improvements with nary a public hiccup. Its shares have almost doubled, raising the question: How central is Jobs to Apple today?