The PlayStation 3 will be getting a new Firmware update on June 22nd, bringing the System Software to version v3.40. The new firmware update will activate Automatic Downloads for PlayStation Plus subscribers and set the system up for other PlayStation Plus functionality.
According to the PlayStation Website:
“PlayStation users can purchase PlayStation Plus membership through PlayStation Store on PS3 only. Users need to install PS3 system software version 3.40, which will be released on June 22nd, to enjoy PlayStation Plus.”