(Credit: Louis Gray)
The latest sighting comes courtesy of the Bluetooth SIG, which uncovered an application for Google's version of the HTC One that listed Android 4.3 as the operating system. Revealing Bluetooth certification for the phone, the application was submitted on June 18 and approved on July 5.
The design name PN071xx_Android 4.3_G specifically refers to the HTC One and the operating system version, while the G likely stands for Google.
The request for Bluetooth certification on an existing phone may have been necessary since Android 4.3 will include Bluetooth 4.0 LE, according to PhoneArena. The new LE, or low-energy, flavor of Bluetooth 4.0 will support a greater array of devices, including fitness and health monitors. It also promises to be easier to set up and manage than the current version of Bluetooth.
Android 4.3 has also reportedly been spied on other phones in the wild, including the Google Play Galaxy S4 and the Nexus 4.