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Nominari has announced presenterCue for Mac OS X. It’s a free (well, sorta) app that lets the user input a list of speakers, then show them their remaining time on multiple displays as they speak.
Designed as a server/client system, its digital timer and color-coded prompter outputs to large LCDs, downstage monitors, prompter displays, and switching systems. The server can feed clients on a LAN, including iOS and OS X devices. .
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