The Tropism Well by UK-based Poietic Studio is a modernized take on the water fountain. Sensing the approach of an individual the well begins to lean automatically as water is pumped into the stem, pouring enough water to fill a glass. The motion of the fountain is really quite elegant and certainly puts a twist on a common functional object. Via their website:
Through the synthesis of nature and technology, these structures explore the relationships we have with objects and spaces that surround us on a daily basis. The simple gestural connection creates a stimulating and symbolic moment. The Tropism Well uses natural laws of physics to function. Once it has seen you, the gentle bowing motion is created simply by moving water up and down the stem.
The catch is one would need a drinking vessel to successfully get a drink, so we might not see these on every street corner soon. However, I for one welcome our new water pouring overlords.