In fact, it seems that QWERTY cellphones are actually displacing the standard numeric pad phones, with legions of handset makers showing very few numeric phones at the recent CTIA trade show in Las Vegas. Without question, the dominant form factors in forthcoming phones are ones that either have a slide out QWERTY keyboard (like Palm's Pre), a QWERTY keyboard at the bottom (like RIM's BlackBerry line) or a full face touchscreen (similar to Apple's iPhone and iPhone 3G).
Many industry analysts are suggesting that the shift is due in large part to our newfound obsession with multimedia (bigger screens are better for watching videos and surfing the web) and our love for messaging rather than talking. Basically, Americans are shifting the way in which they use their phone. A decade ago, a cellphone was simply a talking device, oftentimes reserved for use in emergencies. Now, it's a primary communication device, and we needn't tell you just how varied "communication" can be.
Specifically, CTIA Wireless has reported that US cellphone subscribers sent 1 trillion text messages in 2008, which was a full three times more than in 2007; during that time, the same individuals used 2.2 trillion voice minutes, an increase over just 5%. Interestingly, these same trends aren't necessarily true overseas. In fact, some of Nokia's simple numeric phones are huge sellers in developing nations where they can be offered cheaply. We know it may be hard to stomach for those of you accustomed to texting on that T-9 layout, but it looks like the days of numeric pad dominance (at least in America) are over.