If you haven't known yet, HP Probook 6460b and HP Elitebook 8460p with Whitelist BIOS can now have native Airport with Broadcom 43224AGN 802.11a/b/g/n 2x2 Wi-Fi Adapter.
The card is in whitelist and it can be enabled since OS X 10.8.5 (not working for 10.8.4 or lower). You can see the guide here:
[Guide] Airport - PCIe Half Mini v2
It would be appreciate if HP Probook Installer can include the patch.