While I realize it’s somewhat a question of personal preference, I’ve always liked the haptic feedback when typing on an Android device.

It seems the new Chrome Browser for Android adds a useful new twist: When searching for text within a page, a slightly stronger vibration occurs as soon as you hit a character that produces no further search results. Kind of surprised me for a brief moment at first, but is actually kind of a cool and naturally intuitive way to provide negative feedback while typing.