While Porsche is known for phones like the Sagem P9521 Porsche and Sagem P9522 Porche, this is the first mainstream Partner they have partnered with probably to keep up with the demand for smartphones in today's market.
The BlackBerry Knight is set to debut official during a special event which is set for October 27, in Dubai. An invitation has already been sent out to the media and refers to the device as an 'exclusive collaboration' between Porsche Design and BlackBerry.
While there is no official date for release yet, we should have a date following the event on the 27th.
source - BlackBerryOS