That's according to a report on Joystiq which corrects some inaccurate reports from earlier in the week. Remember when we said that Uncharted NGP was set between the first two games. We were wrong — it's actually a prequel. "It is an all-new story set before Uncharted: Drake's Fortune," Sony told Joystiq.
Joystiq's story also confirms that new Uncharted NGP details will be revealed on June 2nd — that's next Thursday in case you're keeping tabs. We're excited.