Their website does make claims about enhanced security when using the Bitcoin-only mode, something they should really only do if any other code is fully removed from the device.
I don't know how that is possible with clicking on companion app, especially for people who already use Era wallet.
They have to update companion app and they are not reinstalling anything.
Until the code is available as open-source, it will be impossible to definitively prove that the implementation is sound.
This is unacceptable for me.
First they said Era will be open source, now they removed every mention of source code from website.
It has been a long time since they released Era device, and there is no good reason to delay this.
It's nice to hear that you're enjoying your Passport Core, by the way! I'm still looking to get my hands on a Foundation Passport Prime, but there are so many nice toys one can buy.

I am looking to get Keycard Shell, for me this is great price for what they are offering.
Only thing I would like is Bitcoin-only mode, and adding support for monero.