Rockstar originally announced the port over to the PSP platform in June, but we have been waiting for a release date since then. So for those of you who belong to the PSP faithful, this should come as good news. It also means Rockstar is on for a killer week in October with Chinatown Wars for PSP and the second Xbox 360 episodic content pack coming out within two days of each other.
UPDATE: The October 20th release date is for North America. The rest of the world will get it on the 23rd.