Documents seen recently on the FCC web site provide details about an unannounced phone from Samsung. The SPH-i350 has EVDO Rev. A, as well as quad-band GSM/EDGE, Bluetooth (with A2DP), and Wi-Fi radios on board. Samsung phones with a model number similar to this generally run some sort of smartphone operating system, such as Windows Mobile or Symbian, though the FCC documents do not confirm this of the SPH-i350. The documents also make mention of support for 2100MHz spectrum, though this, also, is not 100% confirmed. Neither Samsung nor Sprint has announced this device.