Get Mac OSX Leopard on PSP HOW TO INSTALL: 1. Download the correct File below. 2. Plug in your PSP into your computer using a USB-Cable. 3. Right-click the X5.zip icon to extract the ZIP archive. 4. Drag the X5 folder to the COMMON directory on the PSP. 5. Drag the X5.jpg to the PICTURE directory on the PSP. 6. Remove the USB cable from the PSP. ACCESSING Select the Internet Browser from the XMB (XrossMediaBar) and type the following URL: file:///psp/common/x5/index.html or file:/psp/common/x5/index.html There you have it!
I remember things like this, they also have one that makes it look like Windows Vista and it comes with a few flash games.
There is a Mac OS you can use on PSP but it isn't OSX as that takes too much resources that the PSP doesn't have. You can also install Windows 98 on a PSP but it takes quite some time for it to boot and its pretty slow due to hardware limitations. Its mainly for amusement and I can say that it is quite amusing, until you try to load something and then have to wait a few minutes, then it just gets to be annoying and makes me impatient.