Twitter says 55% of its 100 million regular monthly users connect to the service via mobile.

It revealed the figure while announcing its new targeted mobile advertising.

The April issue of WIRED magazine in the USA will include an advertisement that takes advantage of Near Field Communication to offer further information.

Luxury vehicle manufacturer Lexus is using NFC technology to promote Enform, its voice-controlled in-car navigation and information service. Placing an NFC-equipped Android smartphone near the ad will launch a mobile website containing interactive videos.

A new report from Juniper Research says spending on tablet games will account for around a third of all mobile game revenue by 2016.

It expects the amount of money spent by consumers on games for tablets to reach $3.1 billion by 2014, up from $491 million in 2011.

This week’s podcast from The Fonecast starts by looking at PayPal Here, the ‘point of sale’ solution that’ll turn an iPhone into a credit card terminal. Along with mobile payments there’s also news about WiFi on the London Underground, problems for giffgaff, m-health plans from Vodafone and Apple’s forthcoming spending spree.

As always, you can listen to the programme on our website audio player, via iTunes, by using our RSS feed or by downloading the MP3.

Mark Bridge writes:

Some parts of the mobile industry are all glamour and glitz, megapixels and multi-cores, apps and ads. And then there are the essential parts of the industry, quite often with considerably less competition... and therefore accompanied by less singing and dancing.

Despite hailing from the city of Memphis in Tennessee, Mosaik Solutions isn’t from the rock ‘n’ roll end of the mobile industry. It creates mobile coverage maps and provides coverage data, as well as supplying information about coverage patterns, wireless spectrum depth, network configurations and licencing.