'..it's certainly true that Jobs' style is central to the company's brand and the fierce connection it forges with its customers. His product announcements prompt hundreds of millions of dollars worth of free press coverage and whip up greater and more loyal fans, generating ever-greater interest in the company. ... At some point, all that will end. Jobs will eventually leave the company. There are no obvious plans for succession; in addition to Schiller, observers finger Tim Cook, Apple's COO, and Scott Forstall, who helped develop Mac OS X and the iPhone's software, as contenders for the job. But Tuesday's keynote illustrated how difficult it will be for any of those guys to replace Jobs.'