Philip Elmer-DeWitt, CNN:
"He's young (43). Comfortable on stage (played Sweeney Todd in high school). Has serious nerd credentials (Stanford, NeXT). Shares Steve Jobs' obsession with detail (keeps a jeweler's loupe in his office to check every pixel on every icon). And the division he heads -- mobile software -- drives nearly 70% of Apple's (AAPL) income."