Iain Graham, James Rosewell and Mark Bridge are reunited for their regular weekly look at the latest UK mobile industry headlines.

Today they're talking about smart watches, an Apple iPhone announcement, the new HTC One M8, the closure of Ovivo Mobile, text spam, peer-to-peer messaging, government hacking and mergers.

Noam Green of Flash Networks writes:

The introduction and deployment of LTE networks offers real promise for both subscribers and operators worldwide. It brings the potential for revolutionary improvements in quality of experience for mobile broadband, and even faster downloads and video streaming.

Figures from the USA show there were 10.4 million tablets using built-in cellular connections last year, which is a 46% increase from 2012.

However, sales of cellular-capable tablets fell from 16% of all tablet sales in 2012 to just 12% in 2013.

Aerospace and defence manufacturer Boeing has announced an Android-based smartphone with what’s being described by many people as a ‘self-destruct’ anti-tamper case. It’s called the Boeing Black and has been in development for the past two years.

Breaking into the phone would apparently cause it to delete its software and the user’s personal data. There’s also additional software-based protection and embedded hardware-based security.

A new report about the state of 4G LTE coverage around the world has been published by UK-based business OpenSignal, which creates crowd-sourced mobile network coverage maps from its Android and iOS apps.

The report looks at two key concerns: download speeds and the proportion of time spent in an area covered by an LTE service.