Looking for an honest-to-goodness hardware keyboard option for the iPhone? BoxWave might have the answer with their new Keyboard Buddy product for iPhone 4, which they claim is the first commercially available add-on for the iPhone 4 that adds a real hardware keyboard. The four-row slide-out keyboard connects to your iPhone with Bluetooth, and will last for 45 days on a single charge (though admittedly, this is another thing to remember to charge). The product also works as a case, adding a minimum of bulk to the iPhone 4′s design. The product is shipping for $70 in mid December, though you can preorder now.