Get a UK phone number for your iPod touch so you can send and receive text messages just like an iPhone. Now you can send & receive SMS text messages securely over WiFi without hacking or jailbreaking.
Note: This app requires registration. You get 3 free text messages to start. After that it costs £7.99 Monthly to receive texts and 5p worldwide to send texts.
You must be using an iPhone to see the iPhone version of this app. Try it here