Malcolm Owen, AppleInsider:

Most smartphone users will have experienced issues when using their devices with wet hands or in the rain, with residual water on fingers sometimes causing the display to incorrectly detect or fail to sense touches or swipes.

And:

According to two patent applications published by the U.S. Patent and Trademark Office on Thursday, both titled “Finger tracking in wet environment,” Apple suggests the use of filtering to determine whether a detected touch is intended by the user or not. This occurs before the device performs “computationally-intensive touch processing,” with the aim of reducing processing time and power usage, as well as the byproduct of improved usage in wet weather.

As Apple increases the power of their processors, devices gain more of an ability to analyze all parts of the user experience. Computational photography and machine learning are starting points, but real time “touch processing” is another. Can’t wait to see what other features lurk in the iPhone’s future.