The Square Cash service added a "virtual debit card" feature back in September, and tonight during the Code Commerce event, CEO Jack Dorsey announced that it's integrating with Apple Pay. The virtual Visa debit card lets Square Cash users spend their balance anywhere Visa is accepted (legitimately), and starting today, its iPhone app can enable the card for use on Apple Pay too. If you're not using an iPhone or Apple Watch, Dorsey said that the company does have plans to support other platforms like Android Pay and Samsung Pay.