Sales of bug screens are going to rocket if this technology takes off(no apology for the pun) as the potential uses for such a device in the hands of our collective senior siblings is positively scary. We are all in danger of being surveiled by every government body (and others) from the CSA to the police and Inland Revenue.Invest now in companies that make fly screens for your windows and doors, especially if they can connect them up to a power source to zap them like the things in food shops.Instead of bug spray perhaps a can of hair spry or contact adhesive might gum up the works. Being ex military I can see the benefits for the battlefield and in anti-terrorism but having spent more time as an abused citizen I think that most of the uses will be a bit more mundane.

I refer everyone to the bug shown in the first Lexx movie. Kind of a tenacious little bug, but overall not very reliable.

I heard rumour (totally unverified but it amused me) of the US military pumping millions of dollars into a tripwire detection system using all the latest gadgetry; it was very expensive but not very reliable.

The British Army (low on cash but high on innovation) had a simpler solution to the problem - party poppers. Oki, not very stealthy but very cheap and reliable as the little paper streamers would land on the tripwires but be too light to trigger them. Brilliant.

As I said, totally unverified but it's a nice story :)

Some birds can fly backwards and/or hover - humming birds are the obvious ones.

As to being 'a waste of time' - have some imagination about what you could do with (say) smart nano material and a multi-domain constantly variable wing is fairly easy...

"have some imagination"

Agree. Get so tired of the chorus of 'won't work' and 'waste of money' everytime there is a mention of some even slightly unusual idea. Sometimes get the feeling that the Reg is piped into some home for cranky and nearly dead old guys.

It occurs to me that even at the size of a house-fly, these things would look terribly suspicious if the artist's impression is anything to go by.

One of those things buzzing around the room or perching on a wall is hardly going to blend in, is it?

They should stick with remote controlled cyborg moths - they'd at least look the part while frantically circling the light bulb...

And of course there is the old chestnut of NASA spending millions of dollars to develop a pen that would work in space.

The Russians used pencils.