Sony has been constantly pushing the limits of handheld hardware designs with its high quality CLIÉ handheld devices. Since the release of the CLIÉ NR series, Sony has shown the world that PDAs do not have to be limited to the usual tablet form design. Unlike most PDAs, the NR/NX/NZ series CLIÉ handhelds can be flipped open like a clamshell to reveal a thumb keyboard that is very useful for inputting data. Turning the screen 180 degrees and folding it on top of the keyboard transforms the device into a normal tablet PDA.



Link: Designtechnica