Nami Wallet is a browser based wallet extension to interact with the Cardano blockchain and is non-custodial. It can be used to send and store multiple assets, to delegate, to mint tokens, use multi-sigs and much more. Smart contract support will be added when available. The main difference to current wallets is, that Nami can be injected into the browser context and be connected to any website in order to interact with dApps (decentralized apps).
Yes and no. Nami will not track all addresses associated with your imported wallet, and might result in partial reflection of assets. Daedalus/Yoroi utilize the concept of mulitple addresses per wallet, while Nami just uses a single address. Nami also allows to create sub accounts from a single seed phrase. All accounts except the first one are hidden from Daedalus/Yoroi. We don't recommend using Nami and Daedalus/Yoroi simultaneously, but rather use the seed phrase to migrate from one wallet to another. If you want to migrate from Daedalus/Yoroi send all your funds to the address you see in Nami after importing the seed phrase. We still prefer to create a new wallet for Nami to avoid confusion and keep the user experience great.
Nami is completely free to use and open-source. To fund the project and keep the development up we appreciate delegations to Berry Pool and we also consider using Project Catalyst for additional funds.
You can only import one seed phrase, but from that one you can create sub accounts. Each account is its own wallet and independent from each other. There is no reference to the other account on the blockchain, which gives Nami some kind of privacy and anonymity, when distributing funds accross multiple accounts. With each account you can delegate to different pools.
Yes, you can delegate your ADA to pools. External staking interfaces can be built on websites, where Nami Wallet can be connected to. Inside the wallet itself there is the option to delegate to Berry Pool. If you enjoy using Nami Wallet, consider delegating to Berry. It helps us a lot to keep up the development.