So i was looking at the design (again), and it struck me that the connectivity mode selection button potrudes out of the main body of the phone.
You can problably imagine what’s happening to such buttons/switches: they sometimes get unintentionally pressed/switched while in your pocket.
This might not seem as a serious issue with buttons for volume and such, but if it’s a hard switch to disable all communications, it might raise some concerns.
Imagine if an emergency call fails to go through, or you just enjoy a (suspiciously) calm day at work, and then realise your phone had it’s transciever turned off for the last few hours, because you bumped your phone while it was in your pocket.
I strongly suggest to reduce the size of this switch, so it no longer sticks out of the phone’s body, possibly with a slight notch in it to provide traction sufficient for easy use.