I never even thought of that use case! What kind of stuff do you do on a computer while doing procedures? Like reference material? Tracking what you’ve done?

I vote we rename it to "Ling", short for "lingual"!

Do you have a link to those? It seems ... somewhat implausible.

It's a relatively low volume, customised product, likely with high development costs (even if it doesn't fall under medical device regulations, making something battery- powered that you stick in your mouth is gonna need a good safety case). It's also very valuable to those who use it, so the market can support the high price needed to cover development (the per unit costs are likely much smaller: note you can buy two for nearly the same price as one).

Because there is no mass market, relatively speaking.

At first yes but just like any muscle it would adapt and probably quickly.