Linux Embeds Itself Even Deeper
Because anyone can take Linux and use it as they wish without needing to ask permission (provided they comply with the licence), it ends up being used in lots of places that we rarely hear about. This contrasts with proprietary operating systems, which only get used if they are licensed directly, which means that the licensor always knows exactly what is going on - and can issue yet another boring press release accordingly.
On Open Enterprise blog.