I just don't get it. When I buy a car, I can take it apart, modify it, add a larger fuel pump, increase the boost, add a bigger turbo/exhaust etc. Sure I void the warranty if I have one, but once it's out, it's my own responsibility.
When I buy a PC, I can change anything inside it I want too. It's not illegal to hack the PSP. It's a copyright violation to put commercial games on there you didn't buy, but if you're just slapping on some free software or a better open source web browser, Sony has no right to tell you what you can and can't do with your own hardware! You paid for it and own it. You didn't lease it!
I hate buying a car with the hood welded shut.