I have used Performance Friction pads on my other cars, and they do work well, albeit dustier and perhaps harder on the rotors.
http://www.performancefriction.com/parts-finder/pfc-catalog/aftermarket-catalog.aspx
They list pads for the 2007-2010 Edge:
Part Number Description Position Notes 1258.20 Carbon Metallic Brake Pad Front 1259.20 Carbon Metallic Brake Pad Rear
Carbotech's 1521/Bobcat pads also come recommended by many users in other forums, you can check them out here:
http://www.ctbrakes.com/pads.asp?Make=Ford-Trucks_%26_SUVs
Edge 2011-2011 1521 AX6 XP8 XP10 XP12 XP16 XP20 RP2 F: CT1258 $137 $151 $163 $176 $190 $205 $221 $205 R: CT1377 $130 $140 $152 $164 $177 $191 $206 $191 Edge 2007-2010 1521 AX6 XP8 XP10 XP12 XP16 XP20 RP2 F: CT1258 $137 $151 $163 $176 $190 $205 $221 $205 R: CT1259 $132 $143 $154 $166 $180 $194 $209 $194
Porterfield does now make their R4-S pads for the Edge: http://porterfield-b...Brake Pads.html
Total Record(s) - 2 ( page 1 of 1 ) [ 1 ] AP1258 R4-S Click Here for Compound Information
Set of 4 Pieces
FRONT for FORD: 07-11 Edge // LINCOLN: 07-11 MKX // MAZDA: 07-11 CX-7, 07-11 CX-9
Click For Details AP1259 R4-S Click Here for Compound Information
Set of 4 Pieces
REAR for FORD: 07-10 Edge // LINCOLN: 07-10 MKX // MAZDA: 07-11 CX-7, 07-11 CX-9
Click For Details