LG announced two 3D-capable devices at Mobile World Congress this morning. The LG Optimus 3D, which can record and play 3D video, was widely expected – although the appearance of a tablet with similar 3D cameras was more of a surprise.

Both devices are equipped with twin 5-megapixel cameras on the back… and both have dual-core processors inside.

Samsung launched its Galaxy S II smartphone in Barcelona on Sunday night, just a few hours before the official opening of Mobile World Congress.

It’ll be equipped with a Dual Core Processor and a 4.3-inch super AMOLED screen, yet will be less than 8.5mm deep. An 8 megapixel camera and full 1080p HD recording help to complete the spec.

ViewSonic Europe has a double announcement today. It’s launching a dual-SIM Android smartphone and a dual-boot Android/Windows tablet. Both will be previewed next week at Mobile World Congress.

The ViewSonic V350 smartphone runs the Android 2.2 Froyo operating system. As a ‘dual-SIM’ device it’s able to offer two connections on different networks at the same time. Specifications include a 3.5-inch HVGA capacitive touch screen, 5-megapixel autofocus camera, microSD memory expansion, WiFi, Bluetooth and GPS.

Online technology company Yahoo! has announced a ‘digital newsstand’ called Livestand from Yahoo!

It’s designed to work with tablets and mobile phones, offering information to consumers based on their interests. Initially it’ll use content from Yahoo!’s own news, sport, finance, entertainment and image services. Publishers

HP announced three new webOS devices last night, almost a year after acquiring device manufacturer Palm.

The HP TouchPad is a WiFi & 3G tablet device that's expected to arrive this summer. It boasts a 9.7-inch multitouch display, support for Adobe Flash Player and a front-facing camera.