I have Galileo Gen 1 and I am working on a project that involves analog NTSC video transfer. My idea is to convert the analog video into digital samples via external high MSPS adc (since onboard adc has only one MSPS) and transfer it via galileo's wifi - centrino N135. On the receiver side i will convert the digital samples back to analog and display it in a NTSC compatible monitor.
Sounds like a cool project. I think from the processing side it should do the task, what I’m not sure is the performance you could get. If you decide to try it, post your results over here, so other users can benefit from it.