Nokia’s N80 is already one of the best web-surfing smartphones we’ve had our paws on, so it comes as something of a surprise to find it’s launching a new ‘Internet Edition’ this month.What riches does the update bring? Recent buyers will be pleased to hear that it’s all about little software tweaks rather than a complete overhaul, with the spec – Wi-Fi, 3MP camera, Bluetooth, FM radio – remaining identical.The main update is a new Session Initiation Protocol (SIP) for internet callers. Sadly, Skype doesn’t use SIP, but you could use it for free calls on other services such as Babble.Its web browser has also been given a slight overhaul, with a new folder lurking in the applications menu called ‘Internet’. Open this up and you’ll find a new Wi-Fi setup wizard and another addition called Yahoo!Go!, which gives you instant access to any photos, music and e-mails you’ve got stored on Yahoo’s site.In the same folder you’ll also find Nokia’s new Download! Client, which tells you which new applications you can download to your ‘multimedia computer’ (that’s your N80). Finally, there’s an application called MobiPocket Reader for browsing through books with Amazon’s cool Inside the Book service.