By 2010, shipments of cellular handsets containing Wi-Fi will exceed 132 mln devices, In-Stat says. More than 20 cellular handset models now have, or will soon be, released with embedded Wi-Fi access. A few cellular carriers are planning to offer services that support voice calls over both cellular and Wi-Fi, and some Wi-Fi/Cellular handsets are incorporating VoIP clients for services like Skype.