PSP IDE Interface On The Way?
paul4990 from the PSP3D forums is working on a little project to produce an interface that allows an IDE hard drive to be connected with the PSP and use it as a storage medium. There are any details as to how the interface works, other than it uses the USB port, but the developer says that a public beta release is coming soon. Hopefully this project produces a working interface.
Source:
PSP3D