Skype intruding on their territory, UK-based 3 is letting customers use unlimited Skype-to-Skype calls and messages without any extra fees. The new rules start May 1st for any compatible 3 headset, and later this summer it'll expand to every 3G phone on the network. The company says it sees the initiative as a win to everyone, not just the customers, as the hope is it'll lessen calls to people on other networks, which carries a hefty Mobile Termination Rate fee. Whatever the reasons, we're just happy to see at least one company embracing the VoIP service. We (and Nokia) can only hope this move is somehow contagious.