It's curious there's no video, since they're already crop-dusting. Even searching on the internet didn't turn up anything. BTW "piker" is slang for giving up, not the best startup connotation! (though mightn't be widespread)
Though they seem to have gone to blue now http://www.pmspower.com
I have not heard of anything here in NZ (where we don't call it cropdusting anyway), but who knows.
It depends on what "developed" means, but the next sentence seems to say they are currently earning $600 ph from it. I suppose it could be parsed to mean that a hypothetical "business" earns that.
PS: we do call it cropdusting
Can you guess the laughing when people say:
"Oh no, my Pyka is going down"
or
"You can touch my Pyka if you want"
They can have REAL sale problems if they eventually decide to sell in the Brazilian market.