It was discussed before. 1.4 Holdings is the holding company for the 1.4GHz license. One Dot Four is an affiliate of Harbinger.
From the 10K:
>>"One Dot Four Corp. During September 2009, we entered into a Spectrum Manager Lease Agreement with One Dot Four Corp., an affiliate of Harbinger Capital Partners Master Fund I, Ltd., which, along with its affiliates, is a significant investor in the Company, to lease certain 1.4GHz spectrum for use throughout the United States. The initial lease term continues through April 2017, renewable, at lessee’s option, for two additional terms of ten years each, subject to FCC renewal of the licenses and to early termination under various conditions. We received $3.0 million towards spectrum lease payments during 2009 and recorded $2.3 million as spectrum lease revenue in the consolidated statement of operations. "<<