Awsome, but make unlocking free.

Instead of paying for it, you could earn coins by playing on trainings with cruisers (you dont have to pay for the ships). The amount of coins it costs to unlock a ships info depends on the type. Here is the list of what it should cost in coins: all Cruisers: 20 coins all : Destroyers: 40 coins all Aircraft Carriers: 200 coins all battleships: 80 coins. Each player can have 600 coins from the start. I wish that wOw can be on iPads too!

MaxDHawk about Guide for WORLD OF WARSHIPS