Thanks for the link. I must have missed something, I'm positive this Snapdragon S4 will be in GSIII. Hopefully by the end of this year we will see this phone in the US. I might pick it up then.The Snapdragon SoC in the Skyrocket is third generation (S3).
The Snapdragon SoC that will probably be in the Galaxy SIII is fourth generation (S4). This is the same SoC in the HTC One XL (USA Variant).
You can see a good comparison here (MSM8960 = S4, MSM8660 = S3 (reference devices)):
AnandTech - Qualcomm Snapdragon S4 (Krait) Performance Preview - 1.5 GHz MSM8960 MDP and Adreno 225 Benchmarks