Here's an idea for a psionic armor type that I don't think breaks the suspension of disbelief too severely (though feel free to disagree with that assertion.) The idea is basically this - embeded within their robes, ethereals have a small network of devices that work to further enhance the species' strong psionic and telepathic mental abilities (basically their own version of the psi-amp, except that it enhances a natural ability for the ethereals instead of developing a new power like the psi-amp does for X-com.) These devices cease functioning when an ethereal loses consciousness or dies. However, X-com engineers have developed a method to create a similar "robe" for X-com agents by salvaging parts from the robes of ethereal corpses and augmenting them with psi-amp technology.
Robe of the Ethereal
[snip]
Does anyone think this has potential, or is it just a bit goofy?
I would say that it is a solution in search of a problem. Armor 40 is, by the time you can spare 10 ethereal corpses, a bit pointless. Sure, a psionic often stays in your craft, so he doesn't need armor, but then he won't need that +10 Reaction either. And the question remains, why not wear at least personal armor under that robe? It is not like the armor disrupts psionic powers, is it?
Why while I do find the idea of using remains of ethereals as a basis for psi-boosting tech sensible, this specific armor seems too impractical to me.
And not to be accused of only criticizing, here's my idea for a psi-modifying armor:
Tinfoil Field Suit
Utilizing the Power Suit technology, the Mind Shield technology and a few more advances, this Power Suit variant is designed to keep those of our soldiers who were born with weak psi defences combat-viable. The downsides are lower armor protection and the tinfoil field slightly disrupting the wearer's neural pathways.
Requires:
Power Suit technology, Mind Shield technology, Tinfoil Field Suit technology
7 Elerium, 10 Alien Alloys
Front: 95
Side: 75
Rear: 65
Under: 60
Reactions: -5
Firing: -5
Psionic Strength: +50
Psionic skill: -75
Weight: 12
This would be armor that would let you field some of your old veterans who were not lucky enough to have a high psi score without fear that they will wipe out your own squad. They will become a little weaker, a little more vulnerable, but still better than rookies. And it would be up to the player to balance training psi-strong rookies and improving his/her old vets. Oh, and the logic behind the psi-skill penalty is that if you want to block all incoming psi signals you'll have problems with outgoing signals too.