I meant to write a very exited blog about the new iPhone 4 having a gyro, which I thought would really advance the options to get indoor nav on your smartphone. It turns out there are $1 gyros and $7 gyros. Guess which one is in the iPhone and which one is useful for navigation…

The demand for gyros pushed by the iPhone4 definitely means that the prices are coming down, but let's wait a few years to see how quickly and strongly mobile gyro nav is adopted. In the meantime, trust Layar to show us what gyros can enable on a smartphone (and on the forthcoming Nintendo 3DS).

The newest developments in campaign performances, forecasts, apps and services indicate that now would be an excellent time to invest in location-based mobile coupons, reports Christopher Backeberg...

Is Foursquare really for sale? According to a Bloomberg Businessweek report, the mobile industry will have an answer within weeks.

San Francisco-based Ifbyphone has demonstrated its new, free Cloudvox app that displays the location as well as the assigned number of any phone number which is published online.

China-US startup QderoPateo, pioneer in the mobile technology of articulated naturality, will unveil the world's first articulated naturality smartphone this week.

The UK has recorded the highest annual growth in the use of mobile mapping and direction services in Europe, according to research from comScore.

Location-based advertising (LBA) has been discussed at length for many years and Gartner is forecasting that the overall mobile advertising segment will become a $7.4 billion market by the end of 2014. But despite all the noise and announcements - not least the iAd platform Apple announced this month - very few campaigns have yet been run successfully, writes Thomas Hallauer...

Indoor location services provider WirelessWERX will launch its latest tool, MobiWERX, at the AdTech conference in San Francisco this week.

The History Channel has set up a dedicated page at Foursquare to promote its forthcoming documentary series, America - The Story of Us.

Smartphone users are watching more than a quarter of a million location-based advertising videos a month.