My Samsung NC10 does have almost everything onboard (including the UMTS modem for WWAN) - but it lacks Bluetooth. After a previously used Hama Nano Bluetooth (with Hama I have increased quality problems) is more and more independently off the USB controller and logged, I have this dongle from Belkin concerned. The works flawlessly with MS Bluetooth laser mouse and a stereo headset can be controlled via A2DP. So my requirements are met by the small size, it can remain plugged in when the netbook disappears in his pocket.