
Are the following mentions coreferent?:
<m> starting </m> in T - Mobile will carry the BlackBerry Q10, business registration begins April 29th, T - Mobile confirmed in an email that its business customers will have the opportunity to register for the device starting next week on April 29th, with availability and pricing details to follow "at a later date." General consumers will likely have to wait a little longer, if T - Mobile follows the same launch strategy that it did with the Z10. 
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<m> start </m> in Research in Motion today announced that T-Mobile USA will start selling the new BlackBerry Curve 8900 smartphone to its customers. T-Mobile is expected to launch the BlackBerry Curve 8900 smartphone in mid-February. 