BlueSoleil - The best Bluetooth driver/Bluetooth software for Vista, Linux, WinCE.
TamoGraph Site Survey - Wi-Fi site coverage survey and modelling application
WIDCOMM Bluetooth Software - WIDCOMM BLUETOOTH is a free BT stack which will allow you to connect your computer with others...
Waircut - Free network audit app
Blueman - Blue Man Group will rock your world and blow your mind. Experience a spectacular journey bursting with music, laughter, and surprises.
Homedale - With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength.