So, here's the link to the actual referenced report:
http://www.theregister.co.uk/2011/03/15/apple_ios_throttles_...
IMO, it doesn't add much to the discussion except for this nugget at the very end of the article:
"This developer reiterates that if Apple didn't specifically introduce these problems in iOS, it's aware of them now. And he says that the Mobile Safari team has indicated the issues will not be fixed."