Fortune's Philip Elmer-Dewitt finds an interesting chart in a research note from ISI's Brian Marshall. Apple is bringing in far, far more revenue per employee than other US tech companies.
Today is the release date for Apple’s new iPad Air. Globally, Apple continues to dominate the growing tablet market. But as these Reuters charts show, in the last year, Samsung has been gaining ground, more than doubling the number of tablets it has shipped, and taking market share from Apple: