The Psions were good as long as there was still a dial-up Internet around: they could even generate the DTMF-tones out of telephone-numbers and use them to dial using your phone's microphone. I've kept a 3c-model because of its database program. None of the Psions actually were phones. As they only supported dial-up Internet, I had a look for ISP's that still supported that, and found one (serving the Australian Outback). Unfortunately they didn't accept new customers. As far as second screens are concerned, a while ago there was a Finnish/Russian phone/PDA that had a black and white additional screen on its back. That one drew very little power and could be used for notes and - checking who called. Typing, however, was as clumsy as on any phone. The COSMO features a colour-screen on its back - coloured LEDs instead obviously would've been as user-friendly as Morse-code (for telling you who was calling, if you didn't want to open your phone). In a perfect world, developers would have come up with a Psion keyboard, Internet/WiFi/Bluetooth capability and a black and white screen at the back. Today's cameras are good at taking/watching photos/videos, and they are a lot less chunky.