Finally. The Apple earphones with a mike have been released, and with it come the VOIP apps. Articles, News and Forums for Pros:

Here I am, still ruminating over whether or not I should cave and get an iPhone at Canada's exorbitant rates, when I get wind of this news: telephony company, Truphone has unveiled a FREE (2nd Gen) iPod touch version of its VoIP app.

Fring apparently doesn't need a wonky adapter to work now either. Guess that seals the deal. A touch it is.