That's interesting, but from the copy on the page it seems to target micropayments for reading content published on websites. Which is an important and hard problem.
On the other hand, paying a dollar a month to use a service like email doesn't pose a technological problem. But since most services, unlike email, are walled gardens, I can't pay a provider to give me access to e.g. WhatsApp or Facebook without serving ads or collecting my data.
