Jak to jest z tym Bluetooth 1.2 i 2.0?

A master Bluetooth device can communicate with up to seven devices. This network group of up to eight devices is called a piconet.

A piconet is an ad-hoc computer network, using Bluetooth technology protocols to allow one master device to interconnect with up to seven active devices. Up to 255 further devices can be inactive, or parked, which the master device can bring into active status at any time.

Data can be transferred between the master and one other device, but the master switches rapidly from device to another in a round-robin fashion. (Simultaneous transmission from the master to multiple other devices is possible, but not used much.) Either device may switch to the master role at any time.

Z cytatu z Wikipedii nie wynika, co ma wersja BT do rzeczywistości: dla ciebie jedyna różnica między 1.2 a 2.0 to szybkość. Większa różnica jest między 1.1 a 1.2: dochodzi A2DP i pochodne, oraz kooperatywne niezakłócanie się z Wifi.

no i z tego co wiem 2.0 bardziej łyka baterię ^_^