Clumsy.
Please, Apple. Please release an external keyboard for the iPhone.
For someone like me, with big sausage fingers, the on-screen keypad doesn’t always cut it. I tap away clumsily, having to rely on the built-in predictive text features in order to be intelligible. I believe the iPhone 3.0 software supports a wider range of external devices than the current firmware, so, please, do it. Also, don’t tell me to try a Blackberry instead - they’re even worse. I’m surprised that anyone with bigger fingers than your average 5-year-old can use one.
Having an external keyboard would turn the iPhone or iPod Touch into a proper business tool that could feasibly be used as a proper laptop replacement. I know I’d use it a lot more than I do.