Who's Down? No, it's not an app designed to see whose inner Sadness?thinkInside Out?is smashing the main buttons a bit too hard on their mind's control console. It is an app, but it's a new Google experiment designed to help people figure out which of their friends don't have anything to do at a particular moment (but would like to go do something).

Apple Inc.?s entry into iPhone financing is starting to dislodge some customers from the biggest carriers and sending them shopping for cheaper, smaller providers like T-Mobile US Inc.

Late-stage investors in private tech companies are seeing smaller returns, and a new survey suggests that professionals expect the trend to continue.

A secret Apple iOS app has been discovered on the App Store. "Indoor Survey" does not appear through a traditional search, but the app can be accessed through a direct link. First spotted by developer Steve Troughton-Smith, the app uses signal data and the iPhone's sensors to map out indoor venues and enable indoor positioning.