HP has announced its revamped series of Envy ultrabooks at a press conference in Shanghai and leading the new range is the flagship Spectre XT.

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Laptop legend Lenovo had plenty of portable computers on show at its stand at The Gadget Show Live and one of the most interesting was the upcoming Thinkpad Edge S430.

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The big battle with Ultrabooks - as with smartphones and tablets - is to make them thinner and lighter. Being able to boast that your model is skinnier and less weighty than any other is being taken to the extreme by Acer.

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Covering a show like Mobile World Congress (MWC) presents a few challenges, least of all getting through the fiendishly tight security cordon. I've got two 'new' bits of technology with me here in Barcelona, both aimed at making life a little bit easier.

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There's a huge amount of technology on show at CES, some of it good, some of it bad. We've spent the last three days trying to track down the best of the best at CES 2012. So, what did we pick?

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I'm covering CES 2012 using a Macbook Pro. The idea was to carry a portable but powerful laptop with good battery life that could handle the basic day to day rigours of covering a trade show.

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