If you're looking for an extravaganza on the scale of last month's new iPhone unveiling, chances are you won't find it at Apple's "Way Too Long" event to be held Thursday at its Cupertino headquarters. "This will be a very low-key event," said Gartner analyst Van L. Baker. The consensus is that Apple will be refreshing its tablet and PC lines, and releasing the prime-time version of OS X Yosemite.