PC Advisor today - top technology news, reviews and tips, 25/05/2011

Microsoft Windows Phone 7 'Mango' review

Here's our first-look preview of the features and interface of Windows Phone 7 'Mango'

How to speed up your PC: 24 performance tweaks

Hardware upgrades, software tweaks and networking tricks to get more PC speed

40 reasons why laptops beat tablets

Tablets are intriguing pieces of electronic wizardry, but they have their limitations

BT and Everything, Everywhere to trial 4G services in the UK

100 Mobile customers in Cornwall will be first to trial 4G networks

UK firms get one year to comply with cookie law

Changes to legislation come into force tomorrow

Group test: what's the best budget printer?

The Top 5 budget printers you can buy right now

Tesco trials Satnav app for stores

Supermarket wants testers for the Android app that guides you round the store

Epson WorkForce 840 review

Multifunction colour inkjet printer

The Witcher 2: Assassins Of Kings review

Is this Eastern European RPG a candidate for game of the year?

How to stop a Facebook app posting to your wall

Options in the privacy settings let you revoke an app's access to your wall

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