I just bought some DAO tokens buy sending a transaction from my ethereum wallet. It waits for the first confirmation and then both my ether and DAO balances are updated. It then goes on to reach 12 confirmations. Is it true that from the first confirmation I can potentially use my new DAO tokens? What if I don't reach the 12 confirmations, are subsequent transactions reversed?
Also, where does this number 12 come from? Is this enforced by the DAO contract, the wallet or the network in some way?
Thanks for any help you can give me!