We need access to Bluetooth devices using the Device element. Without Bluetooth access some of the use cases, specially in the mobile device domain would not be achievable.
I think the question is why does it matter they are connected via Bluetooth? Should we really have a USB/Bluetooh/Firewire/etc. distinction at the web platform level? That seems like a bad thing.
-- Anne van Kesteren http://annevankesteren.nl/
