Did you honestly just write that? First off, there are still apps available on the Marketplace that do the exact same thing. Second off, these apps are not illegal in any way, though they may be used for illegal purposes. Google has no legal obligation to remove these apps. Having said that, if the RIAA was going to contact somebody about these apps, they would go directly to the app creators. It's a possibility that they threatened legal action against some of these people (the creators of imusic and music junk), but if google were removing apps like this, there would be none on the marketplace right now. And there still are some.