T-Mobile USA already launched and made the Z10 available but only for business customers. AT&T, on the other hand is now offering the BlackBerry Z10 available for pre-order at $199.99 on contract. AT&T is scheduled to start shipping the device come March 22. For those who wants to pre-order their Z10s now, head over here. For those who still do not know what the Z10 packs, head over here.