Also known as "Malt" for short.
Ranked in these QuestionsQuestion Ranking
Pro Highly optimized for frequency of use
This includes di- and tri-graphs, as well as the individual letter frequency.
Pro Punctuation is also optimized
The comma and period are more frequent than KVJZXQ.
Pro E on the thumb
E is the most used English letter by far at almost 13%.
Con Requires a physical keyboard
The Maltron layout requires an expensive physical Maltron keyboard. Most layout options are a simple change in software, to remap existing keys. (Touch typists mostly don't look at the labels anyway.) But there's no way to add the required thumb keys for this layout in software.