Pretty much every touted feature is WIP, definitely all the important ones. So yeah no that's vaporware.

Does the Doom demo actually work? That'd be enough for me to call it "not vaporware" by a longshot.

IIUC they use chocolate-doom that has approximately 600 .c files, and replace one of them with a .v file. I don't understand what they mean when they say

> DOOM translated from C to V. Builds in 0.7 seconds (x25 speed-up).

The magic porting of C-Doom to V-Doom is still WIP

Aha, I took their marketing at face value. I never learn... :(

Check out some of the discussions from its announcement and early release from last year. There were a lot of statements that were (or at least seemed) false, and several delays in releasing source code (which increased people's conviction that it wasn't entirely legit).