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diff --git a/mediaqueries/Overview.bs b/mediaqueries/Overview.bs
index 47555186bc6..f3ffcb53b75 100644
--- a/mediaqueries/Overview.bs
+++ b/mediaqueries/Overview.bs
@@ -1571,23 +1571,23 @@ Interaction Media Features</h2>
 		Typical examples of devices matching combinations of 'pointer' and 'hover':
 
 		<table class="data">
-			<col>
-			<col></col>
-			<col></col>
 			<thead>
 				<tr>
 					<td>
+					<th>''pointer: none''
 					<th>''pointer: coarse''
 					<th>''pointer: fine''
 			<tbody>
 				<tr>
 					<th scope="row">''hover: none''
+					<td>keyboard-only controls, sequential/spatial (d-pad) focus navigation
 					<td>smartphones, touch screens
-					<td>stylus-based screens (Cintiq, Wacom, etc)
+					<td>basic stylus digitizers (Cintiq, Wacom, etc)
 				<tr>
 					<th scope="row">''hover: hover''
+					<td>
 					<td>Nintendo Wii controller, Kinect
-					<td>mouse, touch pad
+					<td>mouse, touch pad, advanced stylus digitizers (Surface, Samsung Note, Wacom Intuos Pro, etc)
 		</table>
 		<style>

 			#pointer-hover-table { margin: 1em auto; text-align: center; border-collapse: collapse; max-width: 40em; }
@@ -1597,6 +1597,18 @@ Interaction Media Features</h2>
 		</style>
 	</div>
 
+	The 'pointer' and 'hover' features relate to the characteristics of the “primary” input mechanism, 
+	while 'any-pointer' and 'any-hover' can be used to query the properties of all potentially available input mechanisms.
+
+	Note: While this specification does not define how User Agents should decide what the “primary” input is, 
+	the expectation is that User Agents should make this determination 
+	by combining knowledge about the device/environment they are running on, 
+	the number and type of input mechanisms available, 
+	and a notion of which of these inputs is generally and/or currently being used. 
+	User Agents may also decide to dynamically change what type of input is deemed to be primary, 
+	in response to changes in the user environment 
+	or in the way the user is interacting with the UA.
+
 <h3 id="pointer">
 Pointing Device Quality: the 'pointer' feature</h3>
 

+	''pointer: none''	''pointer: coarse''	''pointer: fine''
''hover: none'' +	keyboard-only controls, sequential/spatial (d-pad) focus navigation	smartphones, touch screens -	stylus-based screens (Cintiq, Wacom, etc) +	basic stylus digitizers (Cintiq, Wacom, etc)
''hover: hover'' +		Nintendo Wii controller, Kinect -	mouse, touch pad +	mouse, touch pad, advanced stylus digitizers (Surface, Samsung Note, Wacom Intuos Pro, etc)