If it doesn't have a keyboard, it isn't a smartphone. That's my ironclad rule when it comes to mobile handsets that deliver e-mail and Web access along with voice calls. You've got to be nuts if you try to do serious e-mail by pressing the 2 key three times for the letter C. But a keyboard alone won't make a phone truly smart. Manufacturers are starting to get the keyboard religion. Now T-Mobile is offering first crack at three unique models, complete with sluggish but adequate GPRS data service for a $20 monthly surcharge over voice plans.
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