August 8 - 12:45pm EDT   In spite of promises to the contrary earlier this year, Sprint is indeed looking to sell its iDEN push-to-talk network, according to CNBC. Although no sources have been cited by the TV network, Sprint is already said to be negotiating with NII Holdings for a deal, as well as with separate private equity investors. NII operates primarily in Latin American countries, and is one of the few companies outside of Sprint to rely on iDEN. [full story]