Square Cash

Today, Square launched a new free peer-to-peer money sending via e-mail service called Square Cash:

With Square Cash, individuals no longer need to write checks, pay ATM fees or wait for forgotten loans from friends. Customers simply send an e-mail to the person they’re paying, and after the recipient enters their debit card number, money is directly transferred to their bank account.

I've got to say, this looks pretty slick. I would like some more details on the security aspects of the system but it's nice to see the USA finally catching up a bit with the rest of the world in the realm of personal financial services.