No idea. Jared said in an email that it was a limited quantity. I imagine they will step up production after Defcon. I've had a chance to play with it, and it's sweet. I'm not a coder, but hopefully someone will come out with a transmit option. I have a USB power block zip tied to the bottom, and a small powered speaker taped to that. The only annoyance is that you can only view somewhere between 10 and 12kHz on the display at a time. It's great is you know what frequency you want to listen to. Not so great if your scanning by hand to see what frequencies are being used. Also, you have to change the firmware on the HackRF, and I'm assuming it will not work on a PC once the PortaPack firmware is installed. You can change the firmware back though.