CNET have published their review of the iRiver X20 (4GB) portable media player. 'The iRiver X20 is pretty hefty for a flash player. It measures 3.8 inches tall by 2 inches wide by 0.5 inch thick and weighs 3.2 ounces--you won't be wearing this thing around your neck. On the plus side, this relative bulk allows for a 2.3-inch screen. I wouldn't watch a movie on it, but it's ample for short video clips and photos. To the right of the screen is a five-way control pad surrounded by an ultrathin mechanical scroll wheel (á la the SanDisk Sansa e200 series). As with the e200 series, the X20's scroll ring lights up blue when activated. It's also on the too-thin side, making it a little hard to use, but it has some raised bumps that help provide traction. Inside the ring is a white control pad (up, down, left, and right) surrounding a play/pause key. A power button resides below the control pad and there's a menu key above it.'