Truphone has launched the Truphone Microphone Adaptor, which they say, can turn any 2nd generation iPod touch into a phone.

Truphone is a mobile Voice over Internet Protocol (VoIP) application that routes calls across the Internet.

Truphone promise three easy steps to get your iPod touch working as a phone. First download the free Truphone software from the Apple iTunes App Store, plug your iPhone headphones into the Microphone Adaptor and then into your iPod touch. Finally open Truphone on your iPod touch and follow the instructions.

You will then be able to make free calls to other Truphone, Skype and Google Talk users, make local cost, national and international calls to landlines and mobiles, and Instant Message your Skype, MSN Messenger, Yahoo! Messenger and Google Talk contacts.

The Truphone Microphone Adaptor costs £9.99. The pack also includes a 'Double Credit' scratchcard, when you top up £5, Truphone will double it to £10.

In February Truphone launched the Truphone Local Anywhere service, billed as the world’s first true commercial multi-country single-SIM mobile service that makes it easier than ever to make international calls while still keeping costs down.

More recently Truphone has just been nominated for a 2009 Macworld Award in the category of Best iPhone/iPod touch application.

Check out our new Macworld Mobile site.

Follow Macworld UK on twitter: