1. how will it keep its price while being traded for BTC
2. what are peershares
3. how peershares will be implemented
4. what kind of wallet will it have compared to usue QTs we know
5. what is it vs ie NXT
1. This is the most tricky part.
If demand is higher than supply, the price would go up. In Nu there get voted custodians which build up a sell wall at $1. A custodian gets elected if he got 50% of the votes and coin days destroyed of the last 10 000 blocks. So: If you mine and create a block you include a vote. The custodians are just known by an address and apply for nubits. Because the new NuBits get sold, they create a revenue. The custodians buy PPC with Dollar and pay out to the peershare holders.
If the demand gets lower than the supply, normally the price would fall down. So the network offers people an interest rate if they park their coins on an address (take them out of circulation). The interest rate gets voted. This has two implications: 1. Existing nuBit holders park their coins (supply decreases) and 2. People buy more nuBits because they want the interest (demand rises).
2. In my opinion Nu makes a seperation which Bitcoin and all altcoins don't. In Bitcoin you have 21mio. bitcoins which is currency and a share (ownership) of the network at the same time. In Nu you have the nubits (currency) and nushares (ownership). Nubits have always the price of 1$. Nushares get trades like other cryptocoins. If you like you could use nushares as currency as well and buy them if you anticipate that the network will grow. If I understand correctly all holders of nushares get a share of the revenue.
3. I think Peershares have nothing to do with the Nu network. Theres is just a connection to PPC, because the revenue gets paid in PPC (if it gets paid in nubits there seems to be an intransparence how many nubits existis)
4. It is like a qt wallet, just with two sections (nubits and nushares) and of course new funktions (like parking or voting).
5. It is something completly different. Nxt is just a coin where coins get only created by proof of stake, PPC uses both, Bitcoin only proof of work. The NU network uses a seperation between share and currency. At this moment I have no idea how nushares get/got created and what is getting minted thorugh mining. (I think nubits).