According to Chris Stolee, the new iPhone 3.0 will have parental controls

According to Chris Stolee and his Custom iPhone Apps blog, the new iPhone 3.0 upgrade will feature parental controls. This will allow Apple and the iTunes App Store to loosen the controversial prohibition against "any content that may be seen as objectionable" by anyone. Apple is encouraging app developers who have recently had new apps or updated apps rejected for "objectionable" or "possibly objectionable" to resubmit the apps after the release of the 3.0 upgrade.