Technically true, but when people say "Linux" they usually mean "GNU/Linux" and usually in the context of a desktop or server. Once you support one distro you

Technically true, but when people say "Linux" they usually mean "GNU/Linux" and usually in the context of a desktop or server. Once you support one distro you are essentially supporting them all, even if not officially. Even though Ubuntu is going in it's own direction with Unity etc pretty much all of the base libs are the same. I could understand if they said "Yes, we support Ubuntu 12.04 only" in which case that would basically mean "you can probably get it to work on any distro under the sun but don't call us about it".