The Galaxy S III mini variant for US has been leaked, courtesy @evleaks. Evleaks does not reveal any more details except the press image, model number (SM-G730A) and the carrier, which in this case will be AT&T.
Although the front of the AT&T variant looks similar to the international version, the back seems to have been modified a bit.
On the specification front, the Galaxy S III mini will support 4G LTE, 5MP camera with LED flash, front-facing camera, dual-core processor, 4-inch AMOLED display.
Samsung Galaxy S III mini (SM-G730A "Golden") for AT&T pic.twitter.com/OjQS4iHujF
— @evleaks (@evleaks) August 20, 2013