Oh man, the PSP! I received one for my birthday 6 years ago and was pretty happy with it. I had the PSP3000 model and hacked it immediately. I remember having my system icons in the Windows XP theme and I remember one instance where you could pretend to run WinXP inside the web browser with working games and a start menu, I remember fooling some friends!
Ended up selling it for way cheaper than what it was worth on ebay. I just didn't use it after some time so it sat (as does my 16GB iPad mini).