LM Ericsson (NYSE:ERICY) announced earlier this week that it decided to halt its Bluetooth development.  The Swedish based telecom vendor is shutting down the operation of its wholly-owned subsidiary which invented Bluetooth and became the driving force behind the wireless technology.  The move follows other companies similar exits from this market, including some that happened much earlier, such as Nortel.  However, this is not a complete pullback, as Ericsson is expected to carry on software technology development via its Mobile Platforms unit (another subsidiary). Moreover, the company will assemble a small, dedicated Bluetooth unit to support its existing customers.