Today's smartphones offer amazing experiences, and consumers are increasingly relying on them for everything from navigation, entertainment and shopping to just staying connected.

ENGADGET: T-Mobile launching 'truly unlimited' 4G data service add-on September 5th (Update)

It claims to provide navigation inside buildings, stadiums, airports, shopping malls, hospitals, museums without using GPS or Wifi.

BBC: Technology that works behind closed doors

Mobile products using SiRFstarV and SiRFusion will be able to make a seamless transition between outdoor and indoor navigation as people make their way through countries, cities, neighbourhoods, parks, shopping malls, convention centres, airports, train stations or other large structures while continuing to utilise a variety of location-enabled services and applications.

ENGADGET: CSR sharpens indoor and in-car navigation with SiRFstarV, SiRFusion and SiRFprimaII