There's a new lottery on the Ethereum blockchain - PowerEther.
* Choose either one, two, or four numbers out of ten to play PowerOne, PowerTwo, or PowerFour.
* The winner get the whole jackpot of that game.
* The winner of PowerFour gets the MegaJackpot.
* If the MegaJackpot cap is reached, the first winner of any game gets the MegaJackpot.