Everybody used jet engines until this was developed over the winter. Supposedly dries in 1/3 the time.
Even the “elite” at the NYT wrote it up
http://www.nytimes.com/2013/02/23/sports/autoracing/nascars-air-titan-could-reduce-drying-time-of-rain-soaked-track.html
Great process improvement. But, the article is written in a way to make it seem like rain delays are a new phenomenon... just little bits here and there in the article.