Now I have time to digest the implications of the use of this device I am very concerned.
As far as I can tell the main reason for the unit not being fully waterproof is the use if the standard USB connector, rather than the non standard waterproof design used in the GX32 watch. I realised that the touch screen will not work through waterproof bags! This is a major design flaw. The unit needs to be fully waterproof for proper use.
It may be that feedback from the prototype testers wanting a standard type of USB connection muddied their thinking. I think we need a concerted campaign from the shops and buying public to lobby Locosys to change the case to a fully waterproof connection and construction.
I am investigating it further.