I think this was the final patent on it that was valid anywhere, so now the status changes from "someone has a patent globally and we need to consider this" to "no one has a patent." If you're distributing something globally, even one market that still has the patent might stop you from default shipping a driver touching on it, or you might have to worry about court orders at least. It's hard to avoid jurisdictions on the open web.
Right, but I thought it matters only if you sell something globally. Linux is distributed for free, so the burden of patent compliance is on the user, isn't it?
Is this the "install third-party software" checkbox in the Ubuntu installer?