Doesn't the ultra mode pretty much leave the phone unusable? Everything except Phone calls and SMS is off. Same can be achieved with any Android smartphone or switching off Mobile Data/WiFi/GPS/Bluetooh on the iPhone, I used to do this when hiking etc with my iPhone and it lasted me days as-well.
This isn't a dig at you personally, but the idea of somebody saying "This phone is unusuable! You can't do anything except make calls and text with it!" is just so hilarious to me.
It is, until you start replacing the word "phone" with "pocket computer".
Our smartphones are now computers with phone call making abilities, not phones with some computing abilities.
