Here is a photo of the Ponyo DVD box set, which has been delayed until December. This box includes Ponyo, the extensive making-of documentary, and the Joe Hisaishi concert disc. It's a very impressive set, numbering nine discs in total. These photos have appeared online, and have quickly spread.
Unfortunately, for those of us in the West, it's extremely unlikely that we will ever see this box set, the Ponyo documentary, or the Joe Hisaishi DVD. Imporing from YesAsia or your favorite retailer will be your best option.