I hate to break ranks with the other reviewers but this really is the single most annoying phone that I have ever owned!
Ok, so it does what a mobile ought to do: you can make calls, send texts, take photos and access the web. But, to be honest, that's pretty much the minimum I expect these days.
What drives me to absolute distraction is a basic design fault: the radio on-off switch and the camera shutter switch are both located on the main body of the phone and are NOT de-activated when you lock the keypad. This means that whenever you pick the phone up you either turn on the radio or take a photo of your hand.
It gets worse. The radio switch is right on the front of the slider and is so sensitive that it's impossible to keep the phone in your trouser pocket because any movement you make - standing up, sitting down, getting into the car, getting out of the car or simply walking down the street - will trigger a startling blast of radio static from your trouser leg until you fish the damn thing out, cursing the day you bought it, and turn it off again............taking another photo of your hand as you do so! I can't tell you how annoying this can become!
I only got this a couple of months ago but I've already had enough, so I'm off to Phones 4 You to get a replacement. You'll find my Nokia X3 on eBay but for goodness sake, don't buy it!