So basically like a localbitcoins.com 2.0. It would work in a similar way, with some additional features but the main difference is that it would support not only bitcoin, but a few other cryptocurrencies as well, like 7-8 currencies, the most established ones.
Do you see a demand for such platform? Would you use it?
I think you meant bitcoin transaction as peer to peer however localbitcoins.com is not exactly the same..
Added with few more cryptocurrencies for trading purpose will be really easy for traders and it will gain you more no of users. Make sure you set up a capable hardware like loadbalencers, servers etc.
It will be very advantage to who are trading multiple cryptos because they may be tired of switching their browsers everytime.
Good idea but it requires lots of security
Anyway even you created it requires lots advertisements and some offers to traders in order to gain traders and trust as well