Radi0n said:

Wow, vaderios, I never even noticed that...
Kind of cheap, come to think of it.
Regarding the ongoing subject of Vader's hologram, I agree with HotRod. It's in plain sight, clear as day, that Vader is looking upwards, almost like with the giant Emperor head-hologram. Maybe he's using the same stuff, only not bending down on one knee this time?
I've seen this other concept on youtube, and I'm sure it was mentioned here as well, how Vader appeared on a monitor instead of as a hologram.
It looked like a damn laptop more than anything else and didn't have that authentic Star Wars feel to it.

Adywan, you're right. You should definitely keep the hologram.

You know, I think I've come full circle on this... I concur with the full body hologram.

Mentioning the "Vader - Emperor hologram chat" makes me realize that Vader could very well just be standing on that glowing disc he kneeled on when the Emperor was calling up, which would mean that there would be a head-and-shoulders image of Veers in his chamber as Vader spoke to him.

Maybe the tech that is creating the Vader hologram could be changed to look like the circular pad Vader kneeled on (or have it projected from the console, ala R2's projector)? Or maybe not change a thing?