[QUOTE=Oakminster]
You’d never live long enough to market anything like that. The military would be all over that type of technology faster than you can say Nikola Tesla.
[/QUOTE]
Sure, just like they kidnapped, enslaved, extracted the knowledge and executed the creators of radio, airplanes, homing warheads, nuclear power, digital computers, the Internet, Stealth.
How do we know the first thing the inventor would do would not be to go to the military and get a big fat contract to sell it exclusively to THEM (with the civvie street version to come 20 years down the road)? I know if I invented myself some true killer app with strategic potential, I’d pitch for a DoD contract…
[Quote=Bosda Di’Chi of Tricor]
Every Embassy in the World becomes a gateway for invasion
[/quote]
. As mentioned, not realistic with the specs described. Most embassy grounds are far too small to be an effective LZ/beachhead for a practical invasion force. Specially if the door it has to march through is 20 feet (6.5 metres) wide x 20 feet tall. How do you get in your air support?. Treaties would be established to assure that everybody preserves the embassy’s theoretical sanctuary by not doing that. And why bother with that when you can instead set up covertly somewhere else, say tap into some high-voltage transmission lines going thru the woods, and conduct your infiltration there?
Next, and related to both these items, due to the potential for use to circumvent security measures the use of teleportation technology would likely get legislatively and by treaties constrained to governmental control, either by being operated by government agencies or state-owned enterprised, or by a heavily regulated utility franchise. As with telecom frequencies the warp pathways would soon be declared a public use reserve to which a government agency franchises access, but in this case no aspect of teleportation is left “common” or unregulated. A universal “Caller ID”, e-sig or public/private key system would be legally mandated so not everyone with a booth can send to every other booth unless the call is accepted by the receiver; with mandatory “backdoor” for government access, naturally, or else no license. And that’s where considerations of how portable or power-hungry the device is come into play – based on the cost consideration the OP brings up, this would be at first used for premium cargos with high time premiums. Which includes such things as heroin and WMDs. BUT if it requires a whole substation powered off the 240KV main transmission lines, or if it requires a shielded reinforced-concrete bunker, it’s different than if you can run it “ham” from a converted shrimp boat just outside the 12-mile limit. OR if it involves some sort of measurable, detectable, directional field that, like radio, you can block out by alocating a defined slice thereof to each “legal” 'porter and letting them keep their channel on, cranked up to Ludicrous Power.
It would NOT have much of an effect on leisure or a lot of business travel but Condoleeza Rice would literally be everywhere - just follow the sun and have a 9 am meeting in Canberra, Beijing, Kabul, Nairobi, London and Brasilia in the same day.