Got the Freedom Pro keyboard yesterday, and even though I'd read Spartan's pairing comments, I still flailed a bit before getting it working. This post is intended to help others who get external keyboards.
As Spartan indicated, you must first get KeyPro to connect with the keyboard before Bluetooth pairing. Their website provides clear instructions on how to accomplish this.
Following that, you must execute the Bluetooth pairing, and here is where I encountered a problem. Following the pairing process the Bluetooth pairing screen indicates "Pairing but not connected," even though the KeyPro app still says "Connected." Apparently, as long as KeyPro is connected, you are good to go.
The KeyPro website (actually MyMobileGear.com) then describes that you must tell the Droid to accept input from KeyPro in the setup section, but the picture on their web site doesn't match my Droid's setup screen; no matter, you just have to find it.
The final piece of the puzzle is telling an application to accept entry from KeyPro rather than the Android keyboard, and this is accomplished by a long press on the entry window; a window will pop open with a dialog box where you can select "KeyPro."
All of this is (except the "Pairing but not connected") is covered well in the KeyPro website, so plan to review it before attempting to connect an external keyboard. And thanks to the developer for creating the driver; with a foldable keyboard and a Droid, you really can leave your laptop at home.