Truphone integrates AIM into its Apple iPhone and iPod touch applications. Now customers on both devices can use Truphone to also instant message their AIM friends via their AIM identity. Truphone has already integrated Google Talk, Skype, Windows Live Messenger and Yahoo! Messenger into its applications for these devices, blending voice and IM across multiple platforms, and reaching over 800 million addressable accounts for free.

When not in Wi-Fi range, iPhone users can still exchange calls and messages with Skype and Google Talk users for the cost of a local call*, using the Truphone Anywhere feature. Voice calling will be added to AOL IM, Windows Live Messenger and Yahoo! Messenger within months.

In a separate development, Truphone today began accepting PayPal credit as a method of prepayment for calls out of its network. This addition makes it easy for people without major credit or debit cards to benefit from Truphone’s low calling rates to over 200 countries.

Customers may refill credit to their Truphone accounts via handheld, web site, or phone. They can also choose to automatically top up when credit has fallen to a specified level.