Re: Great Stuff!
My palm pilot can do phone calls. Unfortunately only via the land line modem module while plugged into my phone line or else I might be using it today.
I'm hoping that the Raspberry Pi 4G hats start to get cheap. I expect iPhone and Android's days would look numbered if we could get real hackable phone hardware into the hands of lots of creative people. Too bad the price of a 4G embedded module tends to run around £250.