According to Sony's latest press release, the new PlayStation 3 controller -- or the 'DualShake' -- will not feature DualShock (vibration) support. It should be noted that the Wii controller will vibrate rumble. Here's the official explanation:
"Pursuant to the introduction of this new six-axis sensing system, the vibration feature that is currently available on DUALSHOCK and DUALSHOCK 2 controllers for PlayStation and PlayStation 2, will be removed from the new PS3 controller as vibration itself interferes with information detected by the sensor."
Might we also add that this is a convenient way for Sony to distance itself from the troubles surrounding the DualShock technology?
[Via Sony news release; included in press kit distributed at E3 keynote]