The voip 3g ones are excellent as krl suggested, there are however some new ones coming out which you may not be aware of.
In a bid to dominate the camera phone market, Nokia has announced a partnership with Carl Zeiss optics to incorporate the world-renowned lenses its forthcoming handsets. The N91 will be the first phone to use the new lens and from the photos we?ve seen it?s a hottie. It can take 2 megapixel snaps and features a 20x zoom and macro. The twist-and-shoot design of the phone is genius, transforming it from the shape of a traditional handset to resemble a camcorder when taking snaps.
It?s also a fully-fledged MP3 player with 4GB capacity ? enough to rival many of today?s digital audio players. Boasting dedicated media player controls on the front, simply rip up to 3,000 songs and transfer them to the handset via USB 2.0 or WLAN wireless connection. You can either listen to tunes through headphones, over the speaker or connect it to your home stereo using the 3.5mm jack.
See it in action
Here