Physical teleportation is NOT possible--at least not yet. The human body is far too complex, as is the universe, to be able to safely move the body without actually physically moving (ie. via walking, in a car, etc).
I'm sure science will one day figure out a way to teleport items and people, but that time is a long ways away. Anyone see the movie or read the book "Timeline"? There's a good explanation about why teleportation can be dangerous.
Astrally, you can go anywhere you like.