Great idea but…
I love the idea of the letter arrangement based on the shape and being able to select the dots by long pressing or the auto-correct choosing the right word for you but that doesn’t give you the word you want most of the time. It seems like the prediction model isn’t context aware (or at least doesn’t do a good job of it) and just looks for the most common word based on the shape. Improvement on this is likely going to take time but just having an undo capability (by a swipe or backspace etc.) or the ability to have the auto-correct turn off is going to be a great addition.