Anyone knows what the hell this is?

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Anyone knows what the thing next to the Obsidian is?

I would think it has something to do with the Nether...

On the forums it's been dubbed as 'Bleeding Obsidian'. Even though it's blue.

The He'll is "bleeding obsidian"? Does it replace regular Obsidian when part of a working portal?

Dunno, Orc is just an un-informed bastard.

That may be the planned "Trap block" texture. Not 100% though.

People think there is a trap block because the dispenser gui is labeled "trap"

Looks like a glowing obsidian to me, like the glowing redstone ore.