Step-counting apps could be doing harm by driving people to chase overambitious goals, a leading computer scientist says.

As the federal government grapples with talk of an energy crisis, two tech billionaires appear to be getting a ground-breaking deal done on Twitter.

GoPro had a terrible 2016. The company saw its market eaten away by cheaper, no-name knock-off action cameras, and it didn't help that the major smartphone manufacturers began waterproofing their phones - another key selling point for the go-anywhere shooter.

The iPhone X is as weird and wonderful device. And it will take some time to get used to.

As the NBN rollout reaches the halfway mark, Telstra retains the lion's share of home broadband users who remain loyal even though they're some of the country's least satisfied customers.