Nokia 6300i

Nokia rolls out the 6300i that offers a fully integrated VoIP client in addition to its GSM cell phone capabilities, providing you with the best of both worlds. Hooking up to an available wireless network is a snap, and the fact that you can make VoIP calls with this clearly encourages you to save more on your minutes and rely on VoIP instead when communicating with your close and loved ones. The 6300i can store an astounding 2,000 VoIP, home and cell numbers - more friends than you can shake a stick at. These can be listed side-by-side, while dedicated WLAN and VoIP symbols ensure you know exactly what the connection status and type of phone call is being made at the moment. No idea on how much it costs though.
Source...