I'm looking to learn about Air Motion Transformer technology

In general, ribbon tweeters may sometimes have that last nth degree of uber detail or resolution compared to ATM's, but not by much at all. The difference may only make it a little easier to blend ATM's with the mid or woofer compared to ribbon. Ribbons tend to "beam" vertically more than ATM's - another thing that makes for easier driver integration for ATM's.

Ribbons by design have the ribbon itself that is replaceable. It needs to be replaceable because it can get stretched if played too loud, at which point it can lose performance or even break. The cost of a new ribbon is much cheaper than the cost of a new tweeter. ATM's don't have this problem, but they can take SPL's similar to ribbons without damage...but if you go Too far, you'll need to replace the whole tweeter - but, that's mostly only a problem if you're a metalhead or something :>)

I would imagine a Ribbon tweeter produces far more treble detail than any ATM. I usually don't hear any sound from ATMs other than a beeping when the buttons are pressed or the card is ejected. 

Dyslexia is known to strike at random, but it's rare that you see it so consistently when it does.

Ivan, thank you. You have really helped give me some knowledge to work with. I knew AMTs existed but have never confronted one. I like learning about what I don’t know.  

No sweat, I can answer all your ATM needs.... :>)

I own the Lawrence Audio Violin SE speakers which uses a front firing AMT tweeter and a rear firing ribbon tweeter for ambience.  I previously owned their earlier model which used a front firing ribbon tweeter only. The AMT tweeter is warmer and smoother sounding than the original ribbon tweeter. As stated above, ribbon tweeters, may have a higher range of detail but at times can sound fatiguing especially on poor recordings. I also experienced this with beryllium tweeters when I owned Focal speakers. Like all things, it comes down to equipment matching and your preferences.