There are a few startups working on the Indoor Navigation part: http://www.qubulus.com/2011/06/07/the-indoor-positioning-market-shaped-list-of-indoor-positionin

There are a few startups working on the Indoor Navigation part: http://www.qubulus.com/2011/06/07/the-indoor-positioning-market-shaped-list-of-indoor-positioning-companies/ http://www.qubulus.com/2011/06/07/the-indoor-positioning-mar...