The biggest unsolved problem for these is the power-to-weight ratio (real bugs are amazing). Nuclear batteries is exactly what they need, if they can be made very small.
Real bugs don't have to record/transmit a/v data or record/transmit controller signals. They also spend most of their time refueling or in search of fuel.
Micromechanical Flying Insect: http://robotics.eecs.berkeley.edu/~ronf/mfi.html/
http://www.washingtonpost.com/wp-dyn/content/article/2007/10...
http://www.wired.com/wiredscience/2009/04/flighttheory/
The biggest unsolved problem for these is the power-to-weight ratio (real bugs are amazing). Nuclear batteries is exactly what they need, if they can be made very small.