T-mobile, as we speak, just announced a multi-device, multi-number, option.[press release]
... today unveiled DIGITS and opened up a limited customer beta of this new technology that ends the century-old telecom limit of one number locked to one phone. With DIGITS, your T-Mobile number works across virtually all your connected devices'phones, tablets, wearables and computers. And, in another Un-carrier first, DIGITS lets customers put multiple T-Mobile numbers on the same device, so you can combine work, home and personal numbers on a single smartphone.
disclosure: I'm a customer, and until AT&T was about to buy them up, a shareholder. _____________________________________________________ Knowledge may be power, but communications is the key firstname.lastname@example.org [to foil spammers, my address has been double rot-13 encoded]