As if the Amazon accessory listing and Bluetooth SIG approval weren’t enough proof, the T-Mobile Samsung Galaxy S III SGH-T999 hit the FCC, further confirming previous rumors of its existence. Smartphones often receive certification near release, so perhaps Tmo will be one of the first US carriers with a Galaxy S3 variant in June, like Samsung mentioned. T-Mobile’s version supports AWS/850/1900 bands, so it may be able to squeeze in Samsung’s in-house Exynos 4 quad-core chipset due to the lack of 4G LTE connectivity. The AT&T, Verizon and Sprint models will likely come packed with Qualcomm’s Snapdragon S4 dual-core processor in order to support the LTE technology. We’ll have to wait a bit longer to find out exactly which configuration Tmo chose.