Are you the type that gets frustrated with the iPhone’s onscreen keyboard? If your answer is yes then the TK-421 iPhone Case is the ultimate solution for you. Built for the iPhone 4 or 3GS, this case offers a flip-out tactile keyboard which you can comfortably use for sending long text messages and answering to e-mails. It pairs via Bluetooth which is the main reason why it can’t work for the 3G. What’s the point of getting something like this? Well it can definitely increase accuracy and probably even speed. And your “geekiness” points get +1000.

Here’s a video so you get a better idea of how it works:

To get one, check out the Think Geek website.