You don't need to spell anything out. People disagree with you. First, there's no realistic world in which all of a sudden everyone is using different plugins.

You don't need to spell anything out. People disagree with you. First, there's no realistic world in which all of a sudden everyone is using different plugins. Almost nobody in the world has the kind of distribution that Google does. Very few people could pull this off, and I doubt even Google can. Second, if there were a way to get users to install plugins 99% of the time, then we wouldn't have half the issues we currently do. You act like it would be a bad thing to test for the availability of plugins which enabled new features. It wouldn't be. It would actually be quite awesome. Third, Chrome Frame is exactly the same as Chrome, so, at least in theory, there is NO NEED to test for anything knew. Even if every browser did this, there would be NO NEW browsers. There may be some implementation gotchas, but I don't see the same kind of doomsday scenario you do. Anyway, I think it's highly unlikely Chrome Frame goes anywhere at all.