Peripheral with a single function, teleport() which will teleport the turtle parked on its facing side (no ability to change it right now, IC2 wrench may be an option) to the destination teleporter linked to this one. The cost to teleport is the fuel it would take to normally reach the destination, multiplied by 2 (configurable). There's some fuzzy math if you decide to go cross-dimension. Teleporters are linked by right-clicking with a Redstone Repeater. Two-way teleporting requires a two-way link.