Truphone - best known for its mobile VoIP service - plans to launch a mobile service later this year that'll only charge in-country rates for international calls. Truphone Local Anywhere will let users move their existing mobile or landline numbers to a single SIM card, enabling callers to benefit from cost savings as well. Users can also offer a 'local' mobile number within the country they're visiting. [Truphone blog; press release via Realwire.com]