I love the idea, but at least on android the text scrolls backwards as some people have already noticed. Also, my keyboard thinks that wrvy word needs to be capitalized for some reason so I'm typing backwards all caps. And with he no editing, if it was set up in a way that let my phone at least autocorrect my typos, I think that would go a long way to making this more usable.
But kudos for getting something out there, and I'm really excited to get to use it on my laptop where I'm sure it works better.