Hi there I am part of a group of people arranging the purchase of the positioning system described in the attached paper. This system will track the location of a number of users within either a single cell of multi cell room - very useful for gaming/delivery of indoor location based media. Basically the starting price is 3000 euros, but if we can bulk buy 8 systems the price drops by 30% (or more depending). Currently the order is for 5 systems ...... is anyone interested in this? The paper suggests delivering audio via radio headphones, I personally am tying it into my existing aura project using PDA technology (details at http://muio.org). Please contact me or David if you are interested. Regards Steve