The novel sliding feature on the N91 makes it easy to use.. when it's closed, you can use the media controls or slide it open for the full numeric keypad. For most functions you won't even need to slide it open, and the call and menu keys are also on the outside. The Nokia N91 also has a large 176x208 pixel display in 262,000 colours and a whopping 2 megapixel digital camera on the back. This is a 3G phone, so you can download streaming audio and video at up to 384kbps. The Nokia N91 also has Bluetooth, so you can connect it to a PC or compatible accessory (such as a stereo Bluetooth headset). It also supports WiFi (802.11b and 802.11g) meaning that you can download files other wireless ethernet too! It's not just a clever hardware device though, the Nokia N91 comes with the Symbian Series 60 operating system and a suite of multimedia and personal information management applications. You can even load new applications onto the N91, meaning that this is a very versatile handset indeed.