Gene Roddenberry saw this coming, and made sure the name was usable without a trademark issue. http://en.memory-alpha.org/wiki/Tricorder "...due to a clause in Gene Roddenberry's contracts with Desilu/Paramount dating back to the time of The Original Series. The clause specified that if any company could find a way to make one of the fictional devices actually work, then they would have the right to use the name."

But it won't be a bullet train... They are going to use it for "Blended" (read: slow, crappy Amtrak) rail, subway, infrastructure upgrades... It is a joke, and will not solve any traffic problems.

Key prefix: re- Meteorites enter from space, they do no re-enter.

Doing this would break the system of distributing sub-networks based on geographic/network location. Breaking it would negate one of the points of IPv6: Smaller routing tables at the carrier level.