
Are the following mentions coreferent?:
<m> announced </m> in T-Mobile today announced the BlackBerry Curve 8900, the thinnest and lightest full-QWERTY BlackBerry smartphone. The BlackBerry Curve 8900 features a titanium-colored finish with chrome highlights. It combines a compact design with a full-QWERTY keyboard, 512MHz processor for fast and responsive performance, and built-in GPS and Wi-Fi ( 802.11 b/g ) connectivity. 
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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. 