Photos: new BlackBerry Curves

The other 'convenience key' is on the right edge and by default launches the camera (again, this can be programmed to your preference).

The GPS receiver, present in the 8310 model but not the 8320, is the updated range's main new feature. With it, you can use the built-in BlackBerry Maps service, which offers location-based services such as navigation and finding a restaurant.

The Curve is an ergonomic device, and probably the most user-friendly of the BlackBerry range. However, there's no 3G support — both 83x0 models are quad-band GSM phones with GPRS/EDGE. This leaves them some way behind their leading-edge smartphone competition — particularly the 8310 model, which includes GPS but omits Wi-Fi (the 8320 includes Wi-Fi but lacks GPS). Perhaps we'll eventually get a Curve with Wi-Fi, GPS and 3G too. Let's hope it's not too long a wait.