Samsung have never really had a great history of keeping upcoming products secret, and this is no exception. A listing for their upcoming Galaxy S III has appeared on amazon.de, touting a 4.7-inch Super AMOLED screen, Ice Cream Sandwich and a 12-megapixel camera.
Only partial information is provided, and no picture of the device is saved alongside it, leaving a few aspects to question. Firstly, the Super AMOLED display the listing speaks of doesn't mention a 'Plus,' possibly leading to the inferior pentile arrangement of pixels, something that is commonly done to maintain the thin profile of a smartphone (one of Samsung's go-to selling points in its hardware). The storage is listed as 16GB "expandable up to 32GB," which eludes to either two variants of the phone or one version and microSD slot expansion.
Whichever way, we won't know for certain until May 3rd rolls around to see whether these specs are correct; but they do seem realistic. Watch this space.
Source: Amazon.de (Google Translate)