Very interesting that they chose more of a flat rectangular footprint rather than the more square design of the competition. I'm a little concerned about the durability of a case of this design to withstand impact. At the same time, the flat design would appear to be more "pocketable" which means that it is more likely to be kept on the person.
I will certainly want to hear more about this product as it comes closer to launch.
The bottom line is any PLB has to meet the same standards, so regardless of how they got there it still has to be reasonably robust.