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The holotab, another piece of Weyland tech that the ship Prometheus crew will no doubt use, appears to be the future of holographic data projection. It features sensors that receive and process data at "FTT" speeds—that's "Faster Than Thought." It's used to send orders, calculate faster-than-light navigational jumps, and just to collect data. Now, individuals use them to run a household. It's what the iPad is destined to become.
(Image from WeylandIndustries.com)