Here is a second website where you can search for Ponyo showtimes. If you were frutsrated in your earlier searches, check again today. Most theater chains have now posted their Friday schedules.
Here in Minneapolis-St. Paul, there are seven theaters showing Ponyo. The last three Miyazaki pictures played on one screen - the Uptown or Lagoon Theatres. Disney is finally coming through. It sucks that they had to demand their pound of flesh in return for support, but the support for Studio Ghibli is real. Ghibl Freaks everywhere should be happy and excited.
Fandango - Ponyo