Indeed it will be and it would result in a much smoother experience for users. I had been writing proposals for what I imagine this would look like. You can read it here. Recently I’ve put together what such app would require from a purely techical point of view, you can read it here. As you’ve already noticed, it is a lot of work and there is some progress being made in that direction already. I am not sure if I can share more information, so stay tuned 
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