Qantas has already taken quite a few steps towards allow in-flight cellphone use (and more), but it looks like the Australian airline still needs a bit more time to get things just right, as its now extending a trial it first launched in April. That was originally supposed to run just three months but, according to PC World, it'll now wrap up in February of next year, although Qantas expects to have a preliminary report ready before the end of this year. What's more, these tests (and eventual implementation) are apparently limited to text and email services only, and not voice calling, which is a compromise we're guessing more than a few will be willing to accept.