I have this for my mobile devices that are running Android, but can't wait for the ability to use it on Linux. I do wish that Mozilla would publish some regular updates, though. I realize it's more or less in beta, but I know I'd appreciate at least having a timeline of when they're expecting support, or at least to make sure they're making progress in that direction.

I'm also excited by the prospect of Mozilla offering consumer-facing privacy-focused products besides Firefox and Thunderbird. I can only imagine there's a market for hosted alternatives to GSuite, etc. in that niche that they could capitalize on.