For the real specs of Samsung Galaxy S III refer this.

Finally Samsung is including another feather in its Galaxy brand by this summer – Samsung Galaxy S3.
Just before 2days Samsung has officially began rolling out of the Android operating system’s latest version – IceCream Sandwich on Galaxy S2. And now it is almost ready with the Galaxy S III which is designed to be a significant product from Samsung. S2 had a tremendous success in the whole telecom industry, S3 will be competing to maintain the Korean leadership in the next generation Android Smartphones.

Probable Features:
- Powered by 2GHz Dual Core Processor – Exynos chipset
- Android Os v4.0.3 – IceCream Sandwich
- 32GB Internal Memory with 2GB RAM.
- Networks: 4G, 3G
- 3D will be the Highlighted feature.
- 4.8″ Super AMOLED Plus HD Touch Screen.
- 12MP rear camera, 2MP front camera
- NFC, A-GPS
- Curved Design with gorilla glass protection.
- Ceramic Casing and No plastic Casing.
- Price may be higher than $470.
- No official release date yet, but tentatively it will be released in this summer.