I would love it too. I spent some time working on one, ten or so years ago. I have forgotten the actual power measurements but I came to the conclusion that a laser powerful enough to kill a mosquito in the ~10 ms my tracking system was able to locate it would be too dangerous to leave running with people around, because even if my "never shoot when there might be a human in the background" algorithm worked perfectly (ha!), even just a stray reflection off a nearby shiny surface would be enough to potentially cause permanent eye damage.
Microcontrollers have improved dramatically since then, so perhaps it would be possible to track mosquito flight instead of just scanning for mosquitos and blasting away whenever one shows up in your crosshairs, but unfortunately we'll never see any commercial applications now that Intellectual Ventures has stuck their toe in. Might be fun to try it again as an open source hack project, though...
Microcontrollers have improved dramatically since then, so perhaps it would be possible to track mosquito flight instead of just scanning for mosquitos and blasting away whenever one shows up in your crosshairs, but unfortunately we'll never see any commercial applications now that Intellectual Ventures has stuck their toe in. Might be fun to try it again as an open source hack project, though...