Awesome concept!
I've been waiting for a keyboard like this for ages, and I've finally found one! However, there are things that could be improved. 1 (bug): When using shift, the next key pressed will stay shadowed until pressed again. 2: Holding down delete will only remove one letter at a time, which means that deleting a lot of text takes a very long time. Would be great if holding down delete would remove one word at a time.