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Why do so many features get announced before they are ready?
Next year is a ridiculous promise.
It seems that it's becoming more common for companies making tech products to promise a future update that enables a key feature. While I can't say with authority why companies do this, I can guess: they want to entice you to buy the thing they are showing you. If a feature uses new technology or has a chance of interfering with existing tech, the right government bodies for each country need to evaluate it and approve it.
Or read this on Android Central