How about going at it the other way around: There are laptops with SIM cards / card slots already, for wireless data connectivity. Does it take additional hardware to use that for telephony / SMS, or can the already-present hardware be used for that too, with only a software component to enable it?
Sure, not quite as handy — or Handy, for the German-speakers among us — as a physical phone... But, say you keep your laptop with you in a backpack (Rucksack ;-) ) or such, and a Bluetooth hands-free headset clipped to your ear...? I hear lots of youngsters listen to music continually nowadays, so they already have some kind of earbuds in all the time anyway. Or maybe even some kind of Bluetooth "satellite" handset, to make it easier to initiate outgoing calls / read and write text messages?
Sure, not quite as handy — or Handy, for the German-speakers among us — as a physical phone... But, say you keep your laptop with you in a backpack (Rucksack ;-) ) or such, and a Bluetooth hands-free headset clipped to your ear...? I hear lots of youngsters listen to music continually nowadays, so they already have some kind of earbuds in all the time anyway. Or maybe even some kind of Bluetooth "satellite" handset, to make it easier to initiate outgoing calls / read and write text messages?