AT&T to Ship Galaxy S III On or Before June 21

Not one to be late to the party, AT&T has begun advising its premier business customers that they can expect to see shipments of the Galaxy S III Android flagship smartphone from Samsung to begin shipping on or before June 21. This would mean that AT&T hopes to match availability of the Galaxy S III with rivals T-Mobile USA and Sprint, both of which are expected to bring the device to market on June 21 as well.

Confirmation of the shipment date comes from Droid Matters┬ávia the AT&T Premier website. It’s unclear if the phone will be in stock at retail locations on the 21st as well.

The Galaxy S III will be available in Pebble Blue or Marble White hues from all three carriers. AT&T will also be adding a third color choice for the phone with red being the final option. The Galaxy S III will be available on all three carriers in 16 GB or 32 GB configurations, with options for additional storage via a micro SDHC card slot, as well as 2 GB RAM, Qualcomm Snapdragon S4 CPU, and support for either the fastest LTE or HSPA+ 4G networks in the U.S.–AT&T’s will support HSPA+ and LTE.

The 16 GB version will retail for $199 with a two-year contract while the 32 GB will cost $249 with a service agreement.

In addition to AT&T, Sprint, and T-Mobile, the Galaxy S III will also be coming to Verizon Wireless and U.S. Cellular in July with a shipment date of July 9.

With broad rollout of the Galaxy S III smartphone on four major national carriers and U.S. Cellular, the Galaxy S III is besting HTC’s efforts with its One series smartphone. The One X flagship is only offered on AT&T and Sprint is carrying a rebranded and re-designed variant under the EVO 4G LTE moniker. T-Mobile USA is getting a high-end mid-tier device in the form of the One S and Verizon is getting its own re-branded mid-tier device in the form of the Droid Incredible 4G LTE. With disparate naming conventions from HTC, the One brand seems more muddied and diluted than the Galaxy S III brand that’s being used by Samsung in the U.S. and internationally.