Apple is still working on making your next iPhone waterproof

Apple's iPhones are not yet officially waterproof, even though one or two intrepid users have been busy testing how they hold up to a dunking. Now a new patent has emerged suggesting it's a feature that Apple has an eye on including in the future.
The patent came to light this week but was filed back in July 2014. It focuses on a rubber port cover that loses and regains its shape - so it would allow a headphone jack to be plugged in but then seal the gap again once the headphones were removed, for example.