Later this year, Skype plans to release a mobile Internet cell phone together with the Three operator in the UK. An official for Three confirmed that the company was working with Skype to produce a handset that would allow users in Britain to make free calls on the Internet. The phone is expected to work like any mobile but will also include a Skype function to contact other Skype customers. The device, with an appropriate 3G/GPRS/Wi-Fi roaming, would allow to call worldwide for the cost of data transfer, which will eventually become much more affordable compared to voice calls. Given that currently there are only satellite phone services that cover the whole planet, Skype may offer something similar for areas featuring wireless local area and wide area network connection (WLAN, WWAN).
News source: Xbit Laboratories