For those looking for a backup controller for their PS3. Home button and vibration supported. Even worked with NFS Most Wanted (2012), a game that didn't support my DS4 and Logitech Rumblepad
PS4 Controller Comparison: DualShock 4 vs DualShock 3 - YouTube
How to Connect a PS3 Controller to a PS4
The PS4's gamepad now works wirelessly with your PS3 | Engadget
How to use a DualShock 4 wirelessly with a PS3 | Eurogamer.net
PS4 Controller: DualShock 4 Hands On with PS3 & PC - YouTube
PS4 DualShock 4 controller works with PS3, but not wirelessly : r/PS4
Amazon.com: DualShock 4 Wireless Controller for PlayStation 4 - 20th Anniversary Edition : Video Games
Sony PlayStation 4 3 PS4 PS3 DualShock Twin Controller Stand Dual Joypad Table | eBay