Thumb (USB) drives aren't going away anytime soon. Maybe someday. Cloud computing isn't going to always be available or desired.
And I certainly think CDs and optical media in general will hang on a few more years. Internet access isn't always available or fast enough. And owning your medium has it's appeal- works without the internet!
Dumb phones will be around for many years. There's a lot of people who simply want a phone, nothing more. Heck, I still run into people who don't have or want cell phones.