How can I enable haptic feedback on my keypad? How can I enable haptic feedback on my keypad? By keypad I mean the dial pad thing where you input numbers. I can find an option to turn sound on or off for it but not haptic feedback.

I have the xperia x8 by the way.
It seems somewhat buried, but on my HTC Droid Incredible I navigate to Settings > Language &amp; Keyboard > Touch Input > Text Input. Under Other Settings I can set "Vibrate when typing."