Thanks for posting this!
And way to go Kovid! This is great publicity for your excellent program.
1) You make a ton of money off Calibre somehow - you deserve it. Hard to do with an open source product. Maybe customized support contracts like Red Hat.
2) Publishers and bookstores never get control of Calibre. I shudder to think what BN or Amazon would do to it if they could. It is best just like it is - open source, independent platform, with support for about every device made.