Pre-Orders for both the blue and white version of the Samsung Galaxy S III are showing up from several Amazon retailers now. The prices start at $779.99 for the GT-i9300 16GB MARBLE WHITE FACTORY UNLOCKED GSM i9300 S3 version. The GT-i9300 16GB PEBBLE BLUE FACTORY UNLOCKED GSM i9300 S3 version is going for $829.99. It's important to note that these are the GSM unlocked versions of the phones, and they will supposedly become available June 1st. Be sure to pick up your pre-orders ASAP by clicking on the links below!
Source: S3Forums.com via Amazon SGS3 Blue Pebble Version and Amazon SGS3 White Version