Finnish mobile company Jolla says it has completed its latest investment round and has secured new financing for the company.

It follows an announcement in November, when co-founder Antti Saarnio described the company as being in a “death valley”.

Finnish mobile company Jolla says it is adjusting its operations and will temporarily lay off what it describes as “a big part” of its personnel from next month.

The business, formed four years ago, developed the Sailfish mobile operating system and two associated products: the Jolla smartphone (launched in 2013) and the Jolla Tablet (launched last year).

We begin this week's podcast with updates on two topics we discussed last week: the potential purchase of a UK mobile network by BT - and the crowd-funded Jolla Tablet.

After that we talk about the GSMA's reaction to national roaming, the potential death of the landline, a new threat to Google, management changes and advertising for 4G data.

A crowd-funded campaign by Finnish mobile company Jolla to produce a new tablet device has raised more than three times as much money as it needed.

As a result, the company is planning to add the option of 3G HSDPA mobile data connectivity to the forthcoming Jolla Tablet. In addition, it’ll introduce a split-screen user interface and the ability to handle MicroSDHC memory cards of up to 128GB.

In this week's podcast we're talking about the potential purchase of the O2 UK mobile network by BT.

We also discuss new tablets from Nokia and Jolla, the end of a patent battle, mobile payments via instant messaging, app development for the Apple Watch and plans to make even more spectrum available for mobile broadband in the UK .