The only thing that matters is how easily I can customize what is shown on the screen. Everything else is probably just annoying, like the translation or map feature, which I assume will be finicky and useless. If the ring had four-way arrows and ok/back buttons, and the glasses had a proper SDK for creating basic navigation and retrieval, such as the ability to communicate with HTTP APIs, there would be no limit to the useful things I could create. However, if I'm forced to use built-in applications only, I have very little faith that it would actually be useful, considering how bad the last generation of applications for these devices was.