Well, breaking down the article you linked to:
Better Urban Planning: Not my bailwick, but I'm guessing we could do better than we did.
No Coal Smoke: We arguably did achieve that in the US. We haven't eliminated coal, but better filters etc. mean the sorts of smogs that we used to see, and still do in China, aren't really an issue anymore in most of the US. We might be able to replace coal entirely with gas for industrial process heat, but it would require earlier development of fracking and making the assumption that the more optimistic estimates for gas reserves are correct.
Super Streetlights: We could do this, it's just not every efficient.
Solar Energy: Not my bailwick, but I'm skeptical we could do much better than we have historically without massive government subsidies.
Atomic-Powered Passenger Ships: This could definitely happen as a technology demonstration, but it's harder to achieve as a commercial proposition. It would require significant developments in nuclear power technology, particularly in mass production. I'm inclined to think it could be done, but it would be difficult, and if you're able to make atomic energy that cheap you don't need solar.
Cheap Modular Architecture: Not my bailwick.
Depilatories Instead of Razors: No idea.
Cheap Bio-Sourced Plastics: No idea.
Disposable Dishes: Arguably happened.
Washing the House with a Firehose: This seems like a bad idea. Even if you could make all your furniture waterproof without major sacrifices in cost and comfort, there's still going to be all sorts of stuff about the place you don't want to get wet, like papers and electronics. Making your whole life waterproof is probably impractical.
Freeze-Dried Food: Arguably happened.
Synthetic Food from Cellulose: No idea.
TV Phones: Happened.
TV Shopping: Not that different from internet shopping.
Automated Manufacturing: Depending on the industry we're arguably already there.
Artificially Preventing Hurricanes: I'm not sure but I doubt it.
Supersonic Passenger Planes for the Wealthy: Happened. I suspect it might be possible to make it keep happening instead of dying with Concorde, but I'm not sure.
Cheap Subsonic Passenger Travel: Happened.
Personal Helicopters: Definitely not. No way you could make that cost-effective without radical changes in energy technology and automation.
Fax Machines: Happened, although organized differently from how they expected.
Better Antibiotics: Happened.
Life Extension: We've basically achieved this, just not in the way he expected.
Cheap, Effective Antivirals: No idea but I doubt it.
Heart Scanners: Happened.
Aerogel Blankets: No idea.
