Apple Leader's Health, Earnings, Raise Concerns

The leadership of Steve Jobs helped Apple become more than an iconic computer maker, by shifting it to a hugely profitable electronics business.

Joined at the cord, the iPod and iTunes turned Apple into a big money making machine, as fat margins around the iPod bulked up the bottom line. Apple's forays into new lines of laptops and the rollout of a revamped OS X built up power in the PC market.

Much of the credit goes to Jobs, the prodigal leader who returned to pull Apple out of its malaise. A different malaise concerns followers of Jobs, a pancreatic cancer survivor, and worries about the scarily thin technology icon have Wall Street concerned.

There's no mistaking the dramatic change in Jobs' physical appearance, characterized by weight loss that Apple spokespeople attribute to an unnamed illness and treatment plan, the

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