3UK takes aim at business with Skype

3UK has just introduced mobile Skype for business, according to The Inquirer. Apparently the plan is to create tariffs for sub-20 person businesses/self-employed, then chuck in free Skype calling. The tariffs are post-pay and as a result, don't require regular topping up - as users of 3's pre-pay will know, monthly top-ups become a (very) regular fixture, since there is only a 30-day limit on credit. In addition to the Skyping (is that a word?), there are also free normal mobile calls to other