With this mod, you can harvest bedrock shards from the bottom of the world and use them to create unbreakable tools and armor. Actual bedrock itself remains uncraftable, but you have the ability to create blocks that are truly unbreakable (Even in creative), however these blocks need to be powered by redstone to have this effect. Bedrock tools and armor are slightly slower and less protective than diamond and have very low enchantibility, but they're completely indestructible.
Possibly more to come in the future.