The DualShock 4 Can Now Be Used Wirelessly On PS3

The Dualshock 4 has been partially compatible with the PS3 for a while now if you just plug it in, but now it seems that you can use the controller wirelessly.
A user on Reddit posted the following steps in order to get the controller to work.

1. Connect DS4 with wire to PS3 then turn on.
2. Go to Accessory settings.
3. Select Manage Bluetooth Devices, and scan for device.
4. While scanning hold the PS & Share buttons on the DS4.
5. Select Wireless Controller. The DS4 light should now be white.
6. Unplug wire and test it out.

The PS button, as well as the vibrate and Sixaxis functions still won’t work, but at least they're adding support.  
Source: Reddit