
Are the following mentions coreferent?:
<m> announced </m> in T-Mobile has announced it will be carrying the BlackBerry Curve 8900 smartphone this February, although it will not offer 3G data service. U.S. mobile operator T-Mobile has officially announced it will be offering the BlackBerry Curve 8900 smartphone this February. T-Mobile has not revealed an official release date or pricing information for the BlackBerry Curve 8900, although the unit will work with T-Mobile's unlimited HotSpot Wi-Fi based calling service. 
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<m> announced </m> in Research in Motion today announced that T-Mobile USA will start selling the new BlackBerry Curve 8900 smartphone to its customers. Dubbed as the thinnest and lightest QWERTY BlackBerry, the Curve 8900 will feature built-in GPS with support of location-based services, WiFi with voice and data support, a 3.2 megapixel camera with digital zoom, image stabilization and flash, video recording and playback, a music player, a 3.5mm stereo headset jack and a microSD/SDHC memory card slot with a 256MB card included in the box. 