I heard that supposedly Sony released the specs on UMD (for movies) and made it an "open system". Sony isn't charging any royalties on UMD movies.
That's why so many titles that aren't coming from Sony Pictures are popping up now. And it's why Sony claims to be "upset" about porn being made on UMD video, but says that they can't do anything to stop it.
Anyone with a factory can start running off UMDs now.
Even though Sony says this only applies to movies, you just know that this would be a massive blunder in terms of securing the PSP against game piracy. That is, if anyone was actually interested in bothering to put bootlegs on UMD discs anymore (the Memory Stick is clearly where it's at).