He's not telling us exactly why or for how long, but Steve Jobs announced Monday he will be taking a leave of absence from his duties as Apple's Chief Executive to focus on his health.

What Jobs has told us, though, is who will replace him during his leave. Chief Operating Officer Tim Cook will be the man to fill in for the tech legend.

Many are worried about Apple's future without Jobs at the helm but Cook has been in this position before; Cook filled in for Jobs during two prior leaves of absence. Those past absences came with Jobs' battle with pancreatic cancer and a liver transplant and many presume Jobs' current absence is related to his prior health problems.

T.J. Holmes talks to Leander Kahney, Editor and Publisher of CultofMac.com and Author of "Inside Steve's Brain", about what the future holds for Apple in light of Monday's announcement.

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