during our screen protector production process it is imperative that we make sure the product is suitable and will provide the best protection. Hence releasing a suitable protector before the device it is made for is even released for sale is foolish.
We have discovered that the Galaxy S3 screen is curved at the edges. Producing a full front panel screen protector will be almost impossible as the edges of the protector will over run the curve of the screen, resulting in the protector peeling off when stored in the users pocket, purse...etc.
A solution to this is to make the protector 1mm-2mm shorter all around so that the protector is not in a position where it could be peeled off. Make sure you check with the vendor before purchasing if you want a 100% full front panel protector.