nano has no block size limit because each transaction fits into a single UDP packet and transactions are processed independently of each other.

It can do pay outs

Messages

Nano on its own wont do much.

But if nano manages to get atomic swaps with Ethereum, it would have full access to DeFi. I think it's not that far.

It can be used as blockchain-saved (read unmutable) identity - https://www.reddit.com/r/nanocurrency/comments/gx73a7/introducing_nanoprofile/ On the same idea it can connect IPFS hashes (with any information you need - JSON, media etc.) to blockchain transactions in order to prove their belongs to somebody etc.

Following recent improvements to the free UE4 Plugin, it is now easier than ever to add Nano to arcade machines, single & multiplayer games.

NANO gives business operations a feeless payment platform to cut costs and secure their funds.So its not just good for the payments but for long term storage/investment too