AVRCam has an accompanying program that runs on the PC that connects to the board with a standard RS-232 cable. The CMUCam probably does too. All you really need to do is to swap out the wired connection for a wireless one. There are a number of products that claim to do this fairly transparently. For example, Digi, as I mentioned earlier.
If you check out their products, you'll find all the keywords you should need to find (a.k.a. Google) other like products. Or alternatively, solutions for building your own. There are a bunch of pretty cheap transmitter/receiver or transceiver pairs that claim to behave like a "virtual wire", sometimes just one-way. With two pairs of these you'd have what you need to roll your own Tx/Rx RS-232 pair. There may/should even be a way to make it one-way only with no handshaking, if you only care about the image data, and don't need/want the return channel for controlling the mobile unit. What you're really looking for is a serial-to-anything-wireless translator. They can be as simple as 315MHx ASK encoded up to standard 802.11 Wi-Fi, depending on your money and power budget.