Question: What's more impressive than the iPhone?
Answer: The iPhone hacking community.
The video here demonstrates a movement known as "mainstreaming," which, in this case, is all about making the iPhone a true mobile computing platform, by enabling it to connect to an external keyboard. The magic happens via Bluetooth, so you have a tidy, wireless connection, but it requires a jailbroken iPhone. Don't ask me if it works; I don't have the cajones to jailbreak my phone. But thank goodness these guys do.
"What about an external monitor for the iPhone?" I hear you say. You mean, like your high-def LCD TV? Already here.
This puts us one step closer to Philip Greenspun's ubiquitous Device, and that much closer to the Star Trek communicator.