The past few days have been a good time for launches. Twitter has floated on the stock exchange, Kazam has revealed its smartphone range and EE has created a tariff with a million gigabytes of mobile data.

On the other side of the coin, Acer's CEO is quitting, Vodafone UK has missed its 3G coverage target and hackers can take control of your handset's camera to ascertain PIN codes.

Mark Bridge writes:

The future of mobile technology is inextricably linked with video… or is it the other way round?

Some of the answers will be discussed next week at a seminar being run by the Digital TV Group (DTG), which is the industry association for digital television in the UK.

Mark Bridge writes:

We started last week with a change of plan from BlackBerry. No, it’s not selling itself to Fairfax Financial. Instead it’s aiming to raise $1 billion from investors. Cynics might suggest there wasn’t enough interest for a takeover.

Mark Bridge writes:

No prizes for guessing which two mobile tech stories grabbed most of the headlines last week. Tuesday morning saw Nokia’s much-rumoured tablet and phablet launches, with a Windows RT device and two 6-inch smartphones joining the company’s product portfolio.

Mark Bridge writes:

Ring-back tones offer consumers yet another way to customise their mobile phone service. Yet despite this – and the revenue opportunities they provide – many mobile network operators don’t offer them.

Recently I spoke to Florent Stroppa, General Manager Europe for value-added service specialist OnMobile, to find out why the UK doesn’t really seem to be bothered about ring-back tones… and whether the next-generation of ring-back services will change this.