A new update for the PSP has been released, version 5.03. It is not a big update, only security as far as we know. Could this be Sony patching the GripShift exploit?
New for 5.03: A security patch was added to address security vulnerabilities in the system software.
For now you can only get it off the PSP Network update. Sony have not yet posted it on their website. I will upload it as soon as they have it.
It is now available to download: CLICK ME TO DOWNLOAD