I took a long break before replying
Contact and am trying to avoid making this too personal but ...
Did you read
radeng's post? Here is a professional RADIO ENGINEER, taking time to explain (again) why the use of untested electronic equipment on commercial aircraft is undesirable and your reply?
I'm never going to say they are 100% safe because you can never be 100% sure with anything. But personally I don't have a problem with people using them.
So
you don't have any problem when a radio engineer does have?
To show more confused thinking, you then state that mobile phones are a completely different matter and should be banned (to try and exclude your little toy from the ban) and complete your grand sweep by saying:
And as for transceivers in the cabin one is probably breaking the law.
If a device generates and receives radio frequencies, it is a transceiver. That means that your GPS unit is a transceiver, which is why I used the term. (some devices are transmitter-receivers and some are transceivers but they both generate and received RF)