Sprint's not only partnering with Google to launch the Google Wallet mobile payment system on the Nexus S 4G -- it's also planning to launch new Android devices from Samsung, Motorola, and HTC that feature the NFC tech needed to support the service. We don't know much about the Samsung or HTC devices, but we'd bet the Moto is the Tegra 2-based Photon, which we're expecting to see on June 9th at that joint Sprint / Motorola event. That's all we know for now, but we'll keep digging and let you know if we hear anything else.