I really like the idea. But I don't much care for it syncing to the vendor's cloud server. If it would sync in open file formats to my NextCloud instance, then that's attractive.

Also, there's definitely a balance to be struck between lack of distraction and lack of features. It would be a waste for this not to have an epub reader, for example. But while I'd really appreciate having email on it, that's starting to get into distraction territory.