Do you like the idea of using a keyboard with your iPhone or other iOS device? Matias has come out with a new keyboard called “One Keyboard” which allows you to connect to your Mac or PC, and iPhone all at the same time.
Type2Phone is a new Mac app that allows users to type out text on a Mac computer and have it appear on an iPhone handset instantly, via Bluetooth. The application, which I've been playing around with for the last half hour, works incredibly well and is something Apple fans will undoubtedly appreciate.
The iPhone doesn't feature a physical keyboard, and likely never will. However, one group of people are looking into creating a clip-on keyboard, which users could attach to their smart phone just like a Smart Cover. The accessory, called a "SmartKeyboard," is little more than a concept. However, as TUAW notes, it has potential.