So memoryloss, and a very unimaginitive brain is what it takes to become a regreporter?
may I point out that the obvious way to hold a wristphone, would be euhm, around one's wrist? So holding the device would be very similar to the other thingy on the wrist watchammacallitagain euhm ... dum dum... oh! watches :)
And the unknown contortions to operate such device, probably if not most likely involve using the hand attached to that wrist which doesn't have the phone, to punch miniscule buttons on the phone (on the other wrist)... Do you remember way back when digital watches came out and there was a brief spell, maybe 2 years, during which watch makers attempted to cramp as many buttons on a watch as they could so that the watch could double as a wristcalculator (not to calculate one's wrist, but the be a calculator on a device that is worn on said wrist).
Now either you don't know about these calculator-watches and that's ok, but not having the faintest idea of how one would hold the device is rather a mistery to me.
Text editing isn't too difficult either: Not too long ago we had phones with 12 keys, neatly positioned in four rows of three keys each. Certain letters (3 per key) were associated with certain digits. The phone would have logic to figure out that 2662 could spell bomb or amoc or some such. Long-presses on the keys would reveal accented equivalents of the letter associated to those keys...
Now try scratching your right arm pit with fingers attached to your right hand. Those are unknown contortions!!!