in fact it is a method and not an idea...
...the only thing is the OP didn`t provide a walkthrough how to implement this method in the right way. even if he wouldn`t have to be too detailed about how he is gaining traffic - he left out the important parts.
-where to get the offers?
-what is that iframe thing?
-how do i set this iframe thing up?
-do i need a domain? hosting?
-some hints on how to drive traffic to it?
-what does it mean? test banners, wording, images?
-what do i do with a landing page? how do i make one?
so this reduces the method he wanted to share to an idea he may have given some beginners on a way to implement cpa.
i think it is ok to leave some space for people to get a clue on their own - but dear OP:
if you are beginning a thread like this and directly ask for +rep`s you should have taken the time to put together a real guide on how to implement and bank on this really.
would have saved you all the bashing.