MaTiAz has done it he's found a exploit in the psp now and it seems like the 3000 model will finally be geting in on the homebrew scene😀 and the funny thing about this exploit its the same exploit used back in the day with the tiff exploit anyway he hits there will be a big news of awsomness in a few days.
http://www.mformature.net/2009/04/11/firmware-503-says-hello-world-tiff-based-exploit-released/
http://www.mformature.net/2009/04/11/firmware-503-says-hello-world-tiff-based-exploit-released/