Are you allowed to link to other forums Greg?
It does look better, not stupidly fantastic though. Hopefully that's just because they're using it with an old game rather than that being the limit of what it can do.
Still, quite possible that this will be running on OpenGL. I'm sure it won't count in the "what new games does OpenGL have?" arguments as it's only announced and not released. Or more likely because it's only rumour and not official. Or possibly even that they've not really announced a game, just the engine.
Still, if the first game using this only has to be compared to the first game using Mantle (which may be BF4, depending on delays) then it should be able to walk away with the "better game" title blindfolded and walking backwards. (Yes, I'm not a fan of BF4

)
Could be nice to see things like Half-Life 3, Team Fortress 3, Portal 3, Left 4 Dead 3, CounterStrike 2/3/whatever and, uh, all the other big Source engine games (you know, that one with the thing, and that other one, etc.) use this.