The reward contract has only been tested with a very small amount to make sure it works, therefore there's no possible way the reward would be 2 ETH. We haven't released any date as to when rewards are ready to withdraw so please don't use the rewards contract. If you do, the transaction amount will be more than the reward amount. Our plan at the moment, is not to issue the initial rewards until our first apps have been launched. Glad you have a lightwallet though as it will definitely support rewards. Inevitably some wallets will not be able to process rewards.