OVERVIEW U.S. wireless carrier Sprint Nextel Corp. has agreed to sell a majority stake in the company to Japan's Softbank Corp. (BBB/Watch Neg/--) Our 'B+' corporate credit rating and other ratings on Sprint Nextel remain on CreditWatch, where they were placed with positive implications on Oct. 11, 2012. An important factor in resolving the CreditWatch would be the degree of support we would attribute to the higher-rated Softbank. NEW YORK (Standard&Poor's) Oct. 15, 2012--Standard&Poor's Ratings Services said today that its ratings on Overland Park, Kan.-based wireless carrier Sprint Nextel Corp., including the 'B+' corporate credit rating, remain on CreditWatch. The ratings were placed on CreditWatch with positive implications on Oct. 11, 2012, following the announcement that