Regarding the swaying.
Here is something even scarier for the nervous swimmer, however. There are four movement joints beneath them. They are vital when it comes to helping the 400,000 pounds of stainless steel which make up the pools withstand the motion of the towers. The range of motion is almost twenty inches, which means that the pool should be able to withstand quite a sharp wind.
Also, more pics.
http://www.kuriositas.com/2010/06/ra...e-skyline.html