There has been an outpouring of charity for the victims of Haiti's earthquake. Donors in the U.S. are responding more quickly than they ever have before — via their cell phones. This is the first time large numbers of Americans are giving donations by text message. In other countries, it's been more common to donate this way. According to the Red Cross, more than $4.7 million has come in through text-message donations to date — and they are expecting that number to keep growing.