Wallets are part of the staking system
POS, proof of stake, the newer approach towards block validation, lowers electric cost by eliminating big expensive mining rigs and creates opportunities for investors to earn passive income. For example, download and store NEO in the NEON wallet and receive gas just for holding those coins in your wallet. That's your stake in the NEO blockchain. The more coins you hodl the more interest you receive for your blockchain ownership. Think of it as a loan you made and now you receive the interest from that loan.
The Neon wallet downloads quickly and does not require you to leave the computer on to earn. Expect about a 3% return, hey that beats a cd. Click Here and download
This is a great incentive to buy, hold and earn safely that's the core of a great POS software system. The fee is paid to the NEO coin holders not to miners and there rig.
POS is a consensus approach meaning if the majority of ledgers or computers disagree with the submitted transaction information , the amount , the address, the timestamp, the hash, then the block does not get created So if a coin holder trys to fraudulently change the transaction or software it will immediately be recognized and eliminated, by all the other computers in the consensus pool. That's transparency created by decentralizing the software from one central location , a server in a room, to several personal computers that hold the coin, stakers.
pOS is a set of software rules to reach consensus, or agreement on, the transactions being processed. If one coin holder trys to double spend or alter the transaction in any way the rest of the holders software will immediately see the difference and the block does not get created. This is misbehaving and some POS systems could require you to forfeit the coins your holding if in fact a consensus agreement is not proven.
POS design does change from blockchain to blockchain to improve performance and eliminate development issues that arise such as scaling up in usage. Other coins are developing POS software trying other approaches such as amount needed to stake, rules of governance are applied differently with the target of creating what in my vision has been done already by NEO. The more technical the pos, the more rules it requires and the less likely that confused end users would participate . This technical complication was a great diversion for capturing users valued meta data by the software giants but now that the internet of value has taken over its just not that important to challenge users technically anymore, to gain their meta data. That old data capturing business model is fading and the revolution of easy to use systems is upon us. We shouldn't have to read a manual to use POS. And yes staking pools have cropped up everywhere. but why be a part of a staking operation that requires the computer to be on 24\7 or huge sums of money to participate in.