Well, this exploit has been used to execute code on computers.

so.....

If we can use this to get code to run on a PSP then we could have a possible downgrader in our hands, but like Fanjita said, its not a simple matter(google 'smash the stack for fun and profit') this is a "heap" overflow, not "stack" like the .tif exploit.

So dont hold your breath. It may be a while......if ever.

Heres to hope