1-) yes, game have Evs and IVs and they are working correctly.
2-) You can look up your Pokemon EVs/IVs/Status/etc by logging in the website and going to the page : "My Account".
3-) Yes, there are shiny Pokemon, the rate is the same as the original games.
4-) All pokemon are tradeable(this may change in a near future), you can obtain one starter from Kanto by doing Oak quests.
I do ask though, don't create 10 accounts to acquire Pokemons, if you do so I will certainly take some action.