Haptic is sort of an all encompassing term, but more specifically I meant Tactile Feedback.
Or when the touch screen (in this example) would give you sensory cues as to what you are touching.
As you slide your finger across the screen, you would be able to feel the button on the touch screen.
Imagine a touchscreen Keyboard where you can feel when your fingers leave the space of one button and enter the space of the button next to it.
Immersion.com
• The term tactile feedback is used to describe devices that play high-fidelity tactile sensations, but generally won't move or inhibit the movement of either the device or the hand holding it. A tactile feedback device can play a wide variety of distinguishable taps, textures, and vibration effects to communicate with the user and greatly enrich the computing or gaming experience. A number of pointing and gaming devices fall into this category.
That is the next step in touch screen devices, but that is more for the DSNext than the Wii+