Orange has added three Android-powered smartphones to its own-brand range of handsets, including its first Orange-branded 4G device, although it’s not confirmed whether any will be launched in the UK.

The Orange Lumo is a 4G smartphone with a 4.5-inch screen and an 8 megapixel camera, while the 3G Orange San Remo has a 4.7-inch display and is just 8.2mm deep.

In today's special programme we're preparing for Mobile World Congress 2013. To find out what to expect, Mark Bridge talks to Dr Windsor Holden of Juniper Research.

Their conversation covers everything from Apple's absence to connected cows - and from new operating systems to paying for applications.

eBay-owned online payment service PayPal is introducing a new Chip & PIN device for UK retailers. It’s called PayPal Here - the same name as the company’s plug-in reader for swipe cards in the USA - and is designed to work in conjunction with a smartphone app.

The device is being made available to select UK businesses in the next few months before a full UK launch this summer.

Google has announced the latest version of its Chromebook computers, adding a high-quality touch-sensitive display and the option of 4G connectivity.

The Chromebook is a laptop-type device that runs on Google’s Chrome operating system and relies on cloud storage.

Just a couple of days after NVIDIA announced its new 4G-enabled Tegra 4i mobile processor - and only a few weeks after the original quad-core Tegra 4 was announced - Chinese manufacturer ZTE has confirmed it’s already working on smartphones powered by the new NVIDIA processors.

The first of these devices is expected to go on sale in China by the middle of 2013.