Here are two video previews on the Nokia 5700 XpressMusic 3G phone. One from SymbianFrance and another from ClipSet.net.
The Nokia 5700 XpressMusicfeatures a 2.2-inch 16 million color LCD display. a 2 Megapixel camera, built-in music player supporting popular music formats, Bluetooth A2DP and a microSD card slot supporting up to 2GB.
Videos after the jump.