Eh, the last half of that video wasnt terribly impressive. There have been a few REALLY good videos tossed out by people running emulated servers who explore around currently unvisitable areas.
As to the Gm Powers. Set level and spawn npc's and stuff is probably a given.
And point to point teleporting is nothing new either, considering bothacks have been out for ages that letlow level miner bots farm thorium in winterspring by warping to set node locations and farming them from UNDER the world surface, thereby avoiding aggro.
The "Gm Only" items are probably bogus. Anyone who can emulate their own server shard can make up whatever item they please and load it into their world.
All in all, it was a fairly lackluster display of the Purported GM abilities. Especially when half of them are things we would expect as common abilities.
(I would also be somewhat suspicious of the "drop 100" or whatever command he did. Wouldnt think their loot system would work that way.)