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The 7100t (7100X on O2 in the UK) was announced for T-Mobile USA in September 2004 and was the first of RIM's handsets to slim down and use the SureType keyboard that assigns two letters to each key, thereby saving space. It also used a predictive text system that learnt from the user from the first time they began to type, giving it an edge over competitors of the time.
While it may have been the first BlackBerry device to look more like a phone than a PDA or pager, it also provided the same corporate integration of its predecessors, with access to features like push email, Microsoft Exchange and Lotus Notes for BlackBerry Enterprise Server (BES) customers. Non-BES customers could still access email through a web client timed to retrieve messages every three to 15 minutes.
It was also a quad-band GSM phone, making it truly global, providing it wasn't operator restricted.
It was around this time that RIM began to hit its stride in balancing handset features with security and reliability of its services, leading it to make big gains against competitors using the Windows Mobile platform, which, while enterprise-focused, was not without its foibles.
As importantly, it was one of the first handsets that RIM made that could realistically appeal to consumer buyers, although it failed to make much headway, as it omitted other user-friendly features like a media player or camera. Meanwhile Nokia continued to turn out new models and the Motorola Razr V3 took the world by storm.
Nonetheless, with RIM's confidence and leadership of the enterprise market starting to show through, its share price climbed steadily from October 2003 until the 7100's announcement in late September, doubling from $37.50 to $77. As a side note, it did break the $100 mark briefly during that time, but refused to close a day out at that level. Following the announcement, the price continued to rise, ending just under $83 on 31 December, 2004.