[jfaucett]

This sounds really good. The only disappointment is that it seems there is no business model that allows email providers and services like this to provide Unlimited encrypted email (no limitations i.e. Gmail-esque) absolutely free to all users. I'd be willing to gamble that if anyone could sustain this for a couple years, people would leave Gmail in droves, no one I know likes having to use the USA/NSA/google/big brother tagteam, but they still don't value the invasion of privacy enough to pay for it.

[reitanqild]

I also was confused about the free forever part until I found they actually have a tiered pricing model.

Edit: here is what they say: "Forever Free

We believe privacy is a fundamental human right and should be available for everyone. That's why we offer multi-tiered pricing including a free version that anyone can use. Let's bring privacy back to the people!"

[higherpurpose]

If Google doesn't provide a serious End to End encryption solution for Gmail, then I will probably use it, too, within a year (unless something better comes along, say like a DarkMail-enabled service).

BUT, and it's a big but, I'd only use it for normal e-mails, just because I want to raise a big enough obstacle for NSA to read even my normal e-mails. However, I would not use it for anything too sensitive. I don't trust ProtonMail for that, and since it doesn't have real end to end encryption, you have to trust ProtonMail.