With the new native PSVita hack, many (former) PSP Developers, are jumping ship. Which is kind of logic. Why would you want to play Homebrew games on a device, that is 11 years old, while you can play it on a better screen, faster handheld etc.
While many have declared the PSP dead, the Homebrew scene was always rowdy and alive, even in 2015. Not only the Homebrew scene though. 2015 has spawned some localized PSP UMD’s from Japan. If I had a say in this scene, I would say that we should go out with a bang!
The PSP Homebrew scene will live on, as a major part of the PSVita Homebrew scene