Ringing the changes at the Mobile World Congress 2009

LG's Touch Watch is the kind of phone that James Bond would buy, we feel. One of the early excitements at Mobile World Congress in Barcelona, the LG G910 can be controlled via the sensitive screen on the phone face, and connects wirelessly by Bluetooth. It will be sold by Orange later this year in the UK. Photograph: Albert Gea/REUTERS

Tuesday: At the Mobile World Congress in Barcelona, plans were announced for a universal mobile phone charger Photograph: PR/PR

On Monday photographers crowded around Sony Ericsson's new mobile phone codenamed 'Idou'. One of many products to debut on the first day of Mobile World Congress, Idou has a 12.1 megapixel camera - making it the most powerful smart-cameraphone on the market. Sony Ericsson said it would bring it to the market in the second half of the year Photograph: Gustau Nacarino/Reuters

The Idou is displayed by head of portfolio planning, Steve Walker (L), and head of marketing, Lennard Hoornik Photograph: Gustau Nacarino/Reuters

Hoornik during his presentation in Barcelona, where smartphones were the big theme on day one as manufacturers and network operators chase the success of the iPhone Photograph: Gustau Nacarino/Reuters

A man takes a picture using the Sony Ericsson C903 Cyber-shot mobile phone Photograph: Gustau Nacarino/Reuters

In Barcelona, Samsung unveiled the Blue Earth touchscreen phone, which has a solar panel which can be used to charge it. Available in the UK later this year, the handset is made from recycled water bottles and is free from harmful substances Photograph: PR

Samsung released the Omnia HD at the congress. Its organic LED screen means it consumes less power, giving more time to watch HD movies on the move Photograph: PR

Samsung's Beat DJ takes its inspiration from the record decks found in nightclubs and discos. Users can use its 'scratch' feature to mix their own music by rubbing the touchscreen Photograph: PR

Samsung's Beat Disc includes a slide-out keyboard Photograph: PR

The Garmin-Asus nuvifone M20 is an all-in-one phone, web browser and GPS for on-the-go professionals Photograph: EPA

The Garmin-Asus nuvifone G60, announced at the trade show, is an all-in-one, LBS-centric phone, mobile web-browser and GPS navigator Photograph: EPA

Several workers walk in front of a giant poster of one of the participating mobile phone companies Photograph: Andreu Dalmau/EPA