The first three examples are good ones, especially the one from "A Matter of Honor." That's exactly the sort of thing I'm thinking of -- information superimposed on top of the actual standard visual image.
As for the latter three, the first is only using false-color telemetry to show something that couldn't be shown visually, so it doesn't represent a routine use; also, there's no text incorporated, so it's not showing as much information as it could. I'm not sure about the second... is that some other ship's main viewscreen? If so, then yeah, it counts. But the third is just the viewscreen relaying the feed from Geordi's VISOR, so it's more along the lines of viewscreen-as-monitor, simply displaying what's being transmitted to it. (And don't get me started on how thoroughly TNG squandered the potential of Geordi's VISOR after the first couple of seasons. The guy had a superpower that could've been immensely useful, but more often than not, the only time the VISOR was a plot point was when someone used it to screw with Geordi.)
Overall, I'll grant that they occasionally treated the viewscreen as more than just a window or big-screen videophone, but those occasions weren't nearly as routine as they could've been. Not that that isn't understandable; it would've cost more to mock up graphics on the viewscreen than just to stick an Okudagram transparency into a console. But that's an example of the core question of this thread. When we write about Trek technology, do we observe the same limits even though we aren't bound by the same budgetary restrictions?
I've just realized that something I did in DTI: Watching the Clock is relevant here. I occasionally had the DTI agents using their padds like a modern Blackberry, both as a PDA-type device and a communications device. I figured that since they aren't Starfleet, I wasn't bound by the same conceit of having the communicator be a separate device from a padd (though they did have "temporal tricorders" as well as padds). Maybe there's a reason why Starfleet communicators are kept separate from their data devices, perhaps some sort of security issue. But a civilian agency might do things differently.
