Helio, the joint venture between Korea's SK Telecom and EarthLink targeted towards young consumers, officially launched on Tuesday. The company is leasing bandwidth from CDMA provider Sprint Nextel, however it has added features on top of what Sprint's towers can already provide.

The MVNO, or Mobile Virtual Network Operator, is focusing on Internet features. Helio's phones provide easy access to content such as games, music and video. Additionally, functionality from Yahoo and MySpace.com are built into the phones.