Thank you for taking the time to properly compare the two devices. I am an indentured Ledger user (2 x Nano S, 1 x Nano) and was interested to see Trezor's additional features.

Although I would like to contribute ideas to your article, I am not an expert on application security. To my mind, the biggest threats to crypto security are:

1. Established payment processors marginalising bitcoin through press-release to the mainstream media, and henceforth poisoning public opinion.
2. Bugs and opportunities in forthcoming/ongoing altcoin implementations, including the addition of payment channels (Segwit/Raiden) and POS implementations.

Where I can see hardware wallets headed - I feel like the chaps who have an interest in making the 25$ smartphones (like Humaniq purport to be doing, but swathes have attempted this before now, like Microsoft and Mozilla) will be integrating a security element MORE SIMILAR IN PROFILE to a SIM card/debit card, than using fallible biometrics (again, like Humaniq purport to do.) What I imagine, is instead of Ledger making a secure element device to plug into a smartphone, I see the smartphone manufacturers settling on a standard for a secure element "card" for integration of cryptographic functions, INCLUDING BUT NOT LIMITED TO, cryptocurrencies.