Blackcoin won't be pegged, it requires a lot of additional infrastructure to do achieve something like that. The focus of development appears to be improving the security and stability of the proof-of-stake protocol.

People (Bitbay Supporters) are throwing around pegging like it is the new anonymous transaction, a gimmick you throw into a wallet. It is not easy to accomplish, and has already been successfully achieved (so far). Nubit is doing a good job maintaining their peg using a decentralized corporation built around the Peershares fork NuShares (Our second most active market right now) - we will be adding a NBT/BLK and NBT/BTC exchange soon.

Since the price is pegged to the USD it will be much like having a USD/BLK market, but you get the benefits of crypto. You will be able to take your NBT(USD value) and move it to your local computer.