Why did you choose to tie identity to devices? That idea has always seemed fundamentally flawed to me, and if it wasn't for this flawed core idea, I would be a big fan of what you are doing.

I am not my cell phone, my laptop, or any other possession. I am a collection of memories and experiences, so it makes perfect sense for my identity to be tied to that--like a passphrase.

This isn't just a philosophical idea. I travel a lot and change cell phones all the time. My laptops break and get stolen. I lose things. But I (almost) always have my mind with me.