Rumour has it that the BlackBerry Storm concept was first spawned after Vodafone lost out to O2 in the iPhone bragging rights. But can its purpose-built credentials amount to the first bona fide touchscreen challenger to the Apple' device? Possibly.

'ClickThrough' touchscreen

RIM has traditionally held a rather dim view on touchscreen mobiles. It's no surprise, then, that the company's first outing into the world of touchy-feely handsets holds something completely different in store – a fully 'clickable' screen.

In effect, the whopping 3.25in screen is actually one giant button enabling users to genuinely feel the screen move downwards when an icon or key is pressed. Put your finger gently on one of the tiled menu icons and it will flash blue, with a pop-up letting you know what action the key controls; press down fully and you activate the function.

When it comes to tapping out emails and texts, the Storm attempts to be all things to all men. Hold the handset in portrait mode and you're presented with RIM's compressed SureType keypad layout – or, if you prefer, switch to old-school Multitap input; flip to landscape and the layout automatically switches to full QWERTY courtesy of an accelerometer.

The full keypad is fairly sizable, which limits the amount of message text you can see – but you can't have your QWERTY cake and eat it. Unlike the iPhone, it does support copy and paste. Just click the beginning and end points of the text, press the Menu key and select Copy and repeat for Paste. Easy.

So, with a touchscreen handset living and dying by its finger-friendliness, how does the Storm measure up? Like anything, it's a case of getting used to it. Spend a bit of quality time with the Storm and you'll soon eradicate those emails that display the same grasp of spelling as your four-year-old nephew. But many – especially the less dextrous – will find there's no substitute for old-fashioned buttons.

Responsiveness can also be a big issue, with the menu overly sluggish at times. More infuriating is the slowness of the accelerometer, and although the angle at which it is activated can be adjusted, the speed of response remains unchanged – a major hindrance to the handset's ease of use.

Communication king

RIM may have given the Storm an alluring facelift, but communication is still at its core. Email is – as you would expect – dealt with adeptly. In addition to the usual outstanding Enterprise functionality it's now even easier for the less business-inclined to set up personal accounts simply by entering a username and password. Inboxes can be kept separate, with push email instantly alerting you to new messages in each account.

Document viewing and editing is seamless using DataViz's Documents To Go, so email attachments can be dealt with fluidly. There's also RIM's usual set of calendar and address book functions, which can be synced to your PC using the accompanying BlackBerry Desktop Software.

BlackBerry Application Centre

But RIM is determined to prove the Storm isn't just for suits, and the inclusion of a raft of Instant Messaging apps for download as well as a Facebook and Flickr apps will add to its zeitgeist appeal. All of these are available to download free from the Vodafone-hosted Application Centre, which also offers apps like YouTube and Google Maps. These will be joined by many more next year when RIM launches its own Application Storefront in March.