The 2.0 Firmware Release for North American PSP owners has been delayed for another week, according to Sony.
“The PSP Firmware 2.0 Upgrade for the North American market will be available during the week of August 15th, instead of on August 12, as previously reported.”
No information was given about why the delay has occured, but it could be due to extended testing or correcting bugs from the Japanese release. As far as we know, no additional features have been added.