In a move that might have great potential especially with crowlers, Augusta Label + Packaging now has a patented resealable lid for canned beverages.
It is both leak and tamper proof and can be used with any can line or manual seamer. They are on their second generation lid now. Cost and shelf life extension will be my big questions butI certainly hope it is something that can be perfected, especially if 16oz cans are going to be the dominant craft beer package, even for high ABV beers.