Back in 2002, the Tungsten T's unique slider mechanism, which tucked the PDA's text-entry area behind a slide-up five-way navigation control, seemed a radical step forward from the tablet form-factor of old. PalmOne was pitching the device at executives and, it reckoned, executives spend more time looking at their information than typing it in. The slider allowed the T to become a compact data display device without sacrificing the ability to enter new information.



Link: TheRegister