Travel technology firm OpenWays is attempting a major push to the world’s hotel chains with a new system which allows customers to open doors with a mobile.

The system works by sending an digitally encrypted audio bleep to the door locking mechanism from any smartphone.

Customers are given a code when they check in to a hotel which then sits within a downloadable app on their iPhone, Android or Blackberry device.

Read the full story at : http://www.tnooz.com/2010/03/01/mobile/hotel-door-opening-technology-moving-to-mobile-devices/