Square Debuts New Email Payment System

cagraham writes "Mobile payment company Square — best known for their smartphone credit-card swipers — has launched a new payment service called Square Cash. The service doesn't require users to sign up or make an account. Instead, they just email the person they'd like to transfer money to (with the amount as the subject), and CC 'cash@square.com.' Square asks the sender for their debit card info, and then sends a link to the recipient, who can transfer the money into any account they want within 1-2 business days."