Interesting article from BBC on two indoor-related start-ups:
"I think smartphones will need to have an approach that is independent of radio infrastructure and WiFi and things like that," Bruce Krulwich, Chief Analyst at Grizzly Analytics, told the BBC... However, there is a potential for accumulative errors to creep in when using current indoor navigation technology, he added.... "Of the six or seven companies that have seriously invested in the approach, most have tried to incorporate some other type of system such as radio or maps in order to reduce the error they are getting."
Read the full article here.
For more on indoor location positioning technologies, see our comprehensive report (here) analyzing technology from over 90 companies.