The joint efforts of NTT DoCoMo, Nissan and Sharp have resulted in creating a prototype, which covers all the functions of the Nissan’s keys.

The new Sharp mobile phone will make use of the Intelligent Key technology by Nissan Motor Co. allowing the driver to open and start his car without taking the keys out of the pocket.

You can find out more details on the intriguing technology at the CEATEC show in Tokyo, which will take place next week. The companies will try and release the handset around the second quarter of 2009.