On the second quarter results call, CEO Bill Morrow also predicted the tipping point in the second half of this year - one that will be critical to achieve, to instil real confidence that Clearwire can survive the fierce waters of US telecoms. The well respected former Vodafone executive has brought a good dose of that confidence with him, but results will speak even louder, and he said that "fourth quarter net subscriber additions will be higher than all 2009 quarters combined."