It seems that the main objections to it working for it's intended purpose (to kill malaria-carrying mosquitoes in Africa) are the high cost - each $50 laser covers only a ~100 foot radius - and need for reliable electrical power. But the per-unit price would like drop once production got going and a small solar panel/battery seems likely to be enough to provide it with power.

Of course, then you would have the problem of people stealing the solar panel/battery unit . . .

But for zapping mosquitoes/gnats on your porch/patio, it appears as if it would work just fine.

Hey! Maybe they could sell them for commercial use, then use the income to install them for anti-malaria use. E.g., the Newman's Own Profit Model. :)

--