This is definitely not a plug, but I'm actually working on an alternative to email, cloud storage, authentication/authorization/sso/etc. solutions from Google, Microsoft, etc. and one of my specific focuses is to allow free personal use and free smaller company use. It is refreshing to see I'm not building this in a vacuum. I started the project for no other reason except Google yanking out their free accounts. I absolutely do plan to commercialize it, however, I would still be happy with the result even if it failed, since under Google's pricing, I'd pay more than $1,000 a year vs. less than $10/year with my own solution.