I demonstrate how well the phone streamlines the video and audio playback with my bluetooth car stereo and how it handles receiving and replying to text mess...
The Cortana Cocktail with SodaStream
Cortana for Windows Phone 8.1 hands-on
Microsoft's Cortana (UK version) review
Cortana personal assistant review
Siri vs. Cortana – Mirror Mirror (Commercial)
Siri vs. Cortana – Groundhog Day (Commercial)
Saucony Cortana 3 Main Review