According to Gamespot, the DS3 will be officially be launching at retail this week:
http://www.gamespot.com/news/6188650.html
Still there's no hits on Futureshop or Best Buy's web sites yet, though.
http://www.gamespot.com/news/6188650.html
DualShock 3 Compatibility List
Formula One Championship Edition
MotorStorm*
Pain
High Velocity Bowling
MLB 08: The Show
Uncharted: Drake's Fortune
Resistance: Fall of Man*
Ratchet & Clank Future: Tools of Destruction
Go! Sports Ski*
Folklore*
Heavenly Sword*
Warhawk*
Super Stardust HD*
Snakeball
Toy Home
PSOne Emulation
Piyotama
PixelJunk Monsters
Blast Factor*
Condemned 2: Bloodshot
Lost: Via Domus
Tom Clancy's Rainbow Six Vegas 2*
Burnout Paradise
Dynasty Warriors 6
Devil May Cry 4
DragonBall Z Burst Limit
Turok
*Titles will be given rumble functionality through an update
Still there's no hits on Futureshop or Best Buy's web sites yet, though.