Without patents this would be so much simpler.
JUDGE: Did your client write this software?
LAWYER 1: No, your honour.
JUDGE: Did _your_ client write this software?
LAWYER 2: Yes, your honour.
JUDGE: Alright, then it's theirs and they can do what they want with it. Case closed. *bangs gavel*
Does anyone really think that would be any less fair than the current system?
Showing a page in an IFRAME is really no different from viewing it in, say, an ad-supported webbrowser (like older versions of Opera). There is no reason to try to stop it other than being an asshole. It's like DRM for webpages - you may only view this page in the way we tell you to!
ALL YOUR document.window ARE BELONG TO US!!!
This is religion, this is hysteria.
Religions are usually the ones who, after having been proved wrong again and again and again and finally have to revise parts of their dogma to match reality, claim that the bit that was proven wrong was never that important to begin with. Yes, alright, the earth is in orbit around the sun, and there are lots of other planets, and lots of other suns. Yes, alright, heaven can't be a physical place in the sky. But that wasn't the point.
I think it's pretty obvious which part is the religious one in the politicised climate change "debate". Yes, alright, the earth is getting warmer. Yes, alright, the statistical models and the results we've been ridiculing for years and years seem to be pretty accurate. But that wasn't the point. Is it man made? Is it? Is it?
6.023 x 10 to the 23rd power alligator pears = Avocado's number