U.S. wireless carrier Sprint Nextel has just posted its results for Q2, and while it continues to prepare for a brighter future ahead, it reported a widening net loss of $1.4 billion, with negative EPS of $.46 per share, failing to meet analyst expectations. That’s compared to a net loss of $847 million and a diluted net loss of $.28 per share in the second quarter of 2011. Overall…