How do you text message on an iPod Nano?

FOR FREE ipTexter is an iPod Touch webapp that lets you send and receive free SMS text to and from other iPod Touch users. Simply sign up for a free account, then get your friends and family to sign up for a free account and text away until fingers bleed! All at no cost. It works Worldwide, so you can send an SMS text other iPod Touch users regardless of where they live. ipTexter also offers a service that assigns a mobile number to your iPod Touch, which allows you to send and receive SMS text too and from all mobile phones worldwide.