The key to miniaturization of gadgets is to stuck more functions on the same chip. This way size getting smaller and power consumption too, as there’s less waste current traveling between chips on the PCB. Ralink is one manufacturer that managed to get Bluetooth 3.0+HS and WiFi 802.11n functio...
Bluetooth headsets are many things but not James Bond gadgets like the model with integrated microSD card reader. If you think about it it’s kind of useful, as it can carry your data with ease, you don’t have to use another gadget and it connects via USB, where I suppose it can charge al...