How will the "real-world wear and tear proofing" look like? I.e., I own quite a few nitrokeys and I love them, but I have always felt that I am a bit worried about their resistance to wear / tear / water etc since they are on my keyring all the time and quite exposed. Though I have not had any failures yet in quite a few years of use, this is still a "fear factor" for me. Any hope that you may put special emphasis on making these tough? Could there be some form of IP67 or IP68 version, with maybe a water tight body and a quite water tight connector protector? That would have a lot to say for me and I would happily pay extra money for that (and I am not alone, know quite many people who think the same).