Sprint today reportedsignificant losses for its summer quarter. The carrier's net losses widened from $326 million a year ago to $478 million but were softened by losing a relatively modest 135,000 cellphone customers; the number is Sprint's smallest loss in customers in the past two years. It now has a total of 48.3 million subscribers and remains the third-largest provider, above T-Mobile but well below AT&T's 81.6 million.
