OK he was teleported but Still don’t think he has a teleportation device. It’s an uncontrolled side effect of the time shifting device. He was shot to the earth’s antipode of the island’s anti-matter or perhaps to the next closest location of a lump of antimatter.
Darn, I need to find the synopsis of this episode.
Actually, the teleportation threw me for a loop. I believed from the episode where Desmond got unstuck in time, that the time-travel in Lost was only a consciousness time-travel, with no matter moving. I also had a theory that two instances of the same person could not exist at the same time in Lost's time-travel until I saw this.
On a side note the Orchid intro talks about the "Casimir Effect", which has little to do with time travel except tangentially (from Wikipedia):
Casimir effect and wormholes
Exotic matter with negative energy density is required to stabilize a wormhole.[15] Morris, Thorne and Yurtsever[16] pointed out that the quantum mechanics of the Casimir effect can be used to produce a locally mass-negative region of space-time, and suggested that negative effect could be used to stabilize a wormhole to allow faster than light travel. This was used in the novel Warp Speed by Travis S. Taylor.